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Industrial hemp is an ancient crop that’s making its way into modern construction. 

People have grown hemp for millennia to make products like clothes, rope, fuel, medicine, and paper. But since the 1930s, it’s been prohibitively expensive or illegal to produce hemp in the U.S. and many other nations, mainly because the plant is closely related to marijuana. Unlike marijuana, however, hemp doesn’t get you high because it contains very low levels of the psychoactive chemical THC.

“Industrial hemp is a member of the family Cannabis sativa,” Matthew Mead, founder and CEO of the natural building materials company Hempitecture, told Freethink. “It’s kind of like the sober cousin of THC-producing varieties of hemp. Today, the definition of industrial hemp is that it has 0.3% THC or less.”

Industrial hemp is an ancient crop that’s making its way into modern construction. 

Hempitecture is one of a growing number of companies using hemp for its durability, versatility, and sustainability as a building material. The Idaho-based startup is focusing on insulation. Hemp-based insulation products are as effective at insulating buildings as common insulators like fiberglass, and they’re significantly better for the environment. 

Hemp is a natural product that doesn’t contain toxic chemicals as some synthetic insulation does. What’s more, growing the crop removes carbon from the atmosphere. In fact, hemp is about twice as effective at sequestering carbon as trees. 

Despite its sustainability and wide array of uses, the federal government had long chosen not to differentiate hemp from marijuana. The 2018 Farm Bill changed that by legalizing hemp production on the federal level. Although hemp remains illegal in many states, the industry has seen sudden and chaotic growth in recent years, and is projected to grow from roughly $5 billion in 2019 to $36 billion by 2026.

“I think we’re actually coming back full circle to our ancient roots of building with the Earth,” Mead told Freethink.

The ancient roots of hemp 

Hemp was likely one of the first agricultural crops. Its history in human culture stretches back at least 10,000 years to modern-day China and Taiwan, where archaeologists discovered pottery that had cords made from hemp. Historical texts and other archaeological discoveries suggest the Chinese grew hemp for a wide variety of purposes, like making clothes, medicine, and paper. In fact, the world’s oldest known book — a Buddhist text called the Diamond Sūtra — was printed on hemp. 

Evidence of ancient hemp use has been found across many parts of the planet.

In India, legend holds that the Buddha ate a single hemp seed every day during his ascetic period. In Japan, brides used to wear hemp strands for symbolic purposes during weddings. And in Rome, engineers added hemp fibers to mortar to make stronger bridge abutments. 

In 1606, hemp made its way to North America. The European colonists at Jamestown grew the crop for sails, clothes, and rope, while later settlers heading west used hempen canvas to cover their wagons. Hemp became such a valuable crop during the Colonial Era that the British government even mandated farmers to grow it. Founding Fathers like Thomas Jefferson and George Washington grew hemp on their estates; records indicate that Washington grew it on all five of his Mount Vernon farms. But despite hemp’s agricultural importance in early America, cotton eventually became the fiber crop of choice, mainly because it’s easier to harvest than hemp. 

American hemp production slowed dramatically in the 20th century when the U.S. government passed the Marihuana Tax Act of 1937, which taxed the sale of any form of cannabis. Some have argued that powerful actors like William Randolph Hearst and the Du Pont family, both of whom had economic interests in alternative fibers, aimed to kill off the hemp industry by having the legislation passed, but there’s no hard evidence of a conspiracy. 

During World War II, the U.S. government lifted the cannabis ban and encouraged farmers to grow the crop so the military could produce things like parachute webbing, rope, and thread for shoes. A 1942 government film called “Hemp for Victory” extolled the crop’s history and utility: “For the sailor, no less than the hangman, hemp was indispensable […] American hemp must meet the needs of our Army and Navy, as well as our industries.” Yet after the Allied Victory, the government reinstated the ban on hemp production.

The Marihuana Tax Act of 1937 was overturned by the Supreme Court in the 1969 case Timothy Leary v. United States  yes, that Timothy Leary  and repealed by Congress shortly afterward as part of the Comprehensive Drug Abuse Prevention and Control Act of 1970, which designated Hemp a Schedule I substance alongside its intoxicating relatives. 

It was only with the 2018 Farm Bill that hemp was taken off the list of prohibited substances and legalized at the federal level, though several states had taken steps to make industrial hemp production viable in the years leading up to that. 

As Freethink reported with marijuana, legalization has helped to renew interest in the use of hemp in a number of areas, including as a building material. Today, a number of industrial hemp companies, including  Hempitecture, are looking to the stuff as an alternative to currently used materials. 

To that end, Hempitecture has created a new form of insulation, called hemp wool, made of processed industrial hemp, a binder, and a fire retardant.

It works just as well as synthetic insulation in terms of heat regulation, fire resistance, and preventing the growth of mold. Beyond that, it doesn’t require petrochemicals or other toxic substances to produce and instead works as a carbon sink.

Mead further explained the practical benefits of hemp wool to Freethink:

“What we’ve found is that hemp wool is just better for everybody that comes in contact with it, whether it’s the general contractor who’s on site everyday, the laborers or the installation technicians that are installing it, to the homeowner,” Mead said. “Everybody is happier when they’re around hemp wool because they’re not itchy, they’re not worried about toxic off-gassing or abrasiveness on their skin.”

The insulation works and is currently being used in many building projects. The next challenge is getting it adopted by more people who are currently buying materials that require a great deal of carbon to produce. To do that, Hempitecture is going to have to scale up production. 

Hemp in every home?

Though it’s ramping up, American hemp production is still limited. Because of the cost of importing it, hemp wool is still more expensive than other insulation materials in the U.S. 

Mead hopes to begin domestic production of hemp wool by the middle of 2022, at which point the product may become cost competitive with its alternatives. The price may then continue to fall if industrial hemp production continues to increase.

Growing more hemp for use in building materials and manufacturing fewer petrochemical-derived synthetic insulators could go a long way toward cleaning up the environment. Perhaps one day, the widespread use of hemp-based building materials will make construction cheaper, safer, and more environmentally friendly.

By Stephen Johnson October 19, 2021

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Down To The Last Stem: Making The Most Of Cannabis Plant Waste

Another successful harvest is complete. Your cannabis flower has been cured and trimmed, and the trim has been made into extract or edible — or better yet, both. There’s just one thing left to do: Clean up the plant mess. You’ve got a load of fan leaves, cannabis stalks, root balls and soil that need to be dealt with. While it’s tempting to simply break them down and throw them into large black garbage bags, you’d rather be more environmentally friendly, right? But how?

Going green is a practice most cannabis growers want to embrace with their gardens. However, despite the eco-friendly nature of the cannabis industry, growers in legal states are struggling to make the most of their cannabis plant waste, with much of it ending up in a landfill.

So, what can cannabis growers do? Obviously, the answer to this question depends on the type of grow they’re operating — small-scale medical grows won’t have the same options as large recreational grows. In either case, cannabis plant waste shouldn’t even be referred to as waste; there’s just so much that can be done with it.

Six Options For Reusing And Recycling Your Plant Waste

1. Compost

There are two options when it comes to composting cannabis plant waste. The first is on-site composting. If your grow is on a large enough property, you can create your own organic fertilizer there, but it will have to be far larger an area than a typical at-home composter in order to accommodate cannabis stalks, root balls and fan leaves. If you’re going to start your own compost, you can’t just throw your cannabis waste in a big pile outside and hope for the best; you’ll need a compost area with good drainage, the ability to completely cover it, proper circulation and diverse contents. In addition to the cannabis plant waste, you’ll need to add things like kitchen scraps for moisture. If your grow operation is located outside, an added bonus to making your own compost is that you can use it on your plants. Save the earth, save a few bucks.

If you can’t start your own compost pile, another option is to use an industrial compost facility. Disposing of your cannabis plant waste via an industrial compost facility is undoubtedly the most convenient option, as most facilities provide the bins for the waste and even pick it up. You can then buy compost from these facilities for a great price. The issue with industrial compost facilities is that many of them receive federal funding and thus have to follow federal regulations, which means they can’t take cannabis waste. Some industrial composting facilities are privately owned, however, and will gladly take your cannabis plant waste. Call around to your local composters to find out whether or not they’ll take your cannabis plant waste.

2. Edibles

Fan leaves and cannabis roots aren’t waste at all. In fact, they have medicinal value and should be used. Fan leaves are well known to be good for making teas and juicing. The fan leaves are good for you and are full of all kinds of nutrients.

Cannabis roots have a long history of medicinal use. According to a study published in Cannabis and Cannabinoid Research, the journey of cannabis roots as a medicine began in Ancient Rome when Roman author Pliny the Elder claimed in his encyclopedia Natural Histories that cannabis root could treat stiff joints and a variety of other inflammation-related conditions.

“The current available data on the pharmacology of cannabis root components provide significant support to the historical and ethnobotanical claims of efficacy,” the study concludes.

The study also provides THC content for all parts of the plant. The roots contain no significant THC, the stems and fan leaves tested at less than 1 percent THC, and the flower being tested came in at 15.2 percent. So, while the roots may not contain significant THC, other chemical compounds in the plant matter may provide relief for a variety of inflammation-related ills.

Since fan leaves don’t contain much THC or CBD, they’re most useful for juicing and teas. Roots don’t contain any THC, so their medicinal properties can be accessed by making a simple cannabis root tea. You won’t want to juice cannabis roots, as the flavor and consistency aren’t appealing. If this is the route you choose to take, there’s plenty of info and recipes out there to help you get the most out of these healthful ingredients.

3. Topicals

Cannabis stems and fan leaves contain trace amounts of THC — .3 percent and .8 percent, respectively, according to the aforementioned study. This makes them a viable source for medicinal use in the form of topicals. Since most cannabis growers are left with vast amounts of fan leaves, extracting medicine from them by making an oil is an economic and ecologically friendly method.

Once you’ve made your cannabis oil (stick to coconut or olive oil for topicals; rubbing butter on your skin is problematic), there are many recipes online that use other herbs to complement cannabis, both with their fragrance and medicinal qualities. Herbs such as rosemary, lavender, sage and thyme all offer medicinal and aromatic benefits that will make your topicals extra effective.

4. Mulch

One simple, effective and inexpensive way to repurpose cannabis stalks is to turn them into mulch. Put the cannabis stalks through a wood chipper and you’ll have mulch to put on your garden beds, or wherever else you may need mulch. It provides a great cover for the winter and will eventually break down and benefit the soil.

5. Fiber

Long before cannabis and hemp prohibition were even considered, our forefathers were using hemp stalks to create textiles including ropes, clothing and even sails for their ships. Hemp and marijuana are different plants, but their hardy stalks can be used in many of the same ways, one of which being fiber. Creating rope, in particular, is fairly simple and can be done with rough, inexpensive and easy-to-acquire farm equipment. The wonderful world of YouTube has several videos on how to process hemp stalks on a small scale. Cannabis stalks can be processed in the same way.

Check out the below YouTube clip courtesy of Mainely Acres about processing hemp on a small scale:

If you’re looking to process cannabis stalks on a larger scale, you’ll want to partner with someone capable of processing stalks into a fiber. It may take some digging to find the right partner, but sustainable fiber producers are out there and eager to work with new materials, if regulations allow. If you’re in Colorado, you’re in luck. State laws were just updated to allow, and actually encourage, cannabis growers to turn their plant waste into industrial fibers.

Cannabis Recycling

Hempcrete is made from the center core of the cannabis stalk, also known as the hurds.

6. Hempcrete

An underappreciated way to utilize hemp and cannabis stalks is to turn them into hempcrete. Unlike fiber, which is made from the outer layer of a cannabis stalk, hempcrete is made from the center core of the cannabis stalk, also known as the hurds. To turn those hurds into hempcrete, chop them up and mix them with a lime-based binder and water. A common ratio is:

  • Four parts hurds
  • One part lime binder
  • One part water

Different ratios produce different strengths, depending on the application, so it’s good to play around with ratios until you find the right one for your project. The hempcrete mixture will need to be placed in a metal or wood structural frame to dry. The drying takes at least a month, so it will need to be done during a dry season.

So, before you bag up those remnants of your last grow for the landfill, consider one of these options to help make the most out of your cannabis plant waste. Not only will you possibly be able to profit, but you’ll also be helping to save the planet.

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Pot Porsches and Hempcrete are here

From stalled legislation to falling stock prices, cannabis didn’t have the greatest year. But investors are finding something to be optimistic about heading into 2022: industrial hemp.

Demand is poised to rise for hemp — the staid sister to the mood-altering forms of cannabis — as it’s increasingly adopted for a wide range of uses, including concrete blocks, clothing and even car parts. The shift is driven by environmental incentives such as carbon caps and single-use plastic bans, which are making some natural materials preferable to those made from petrochemicals.

“Industrial hemp is the biggest opportunity in the cannabis sector as a whole,” said Mina Mishrikey, a partner at Merida Capital Partners. His firm has invested around 90% to 95% of its $500 million in assets under management in cannabis businesses centered around THC, the psychoactive ingredient in marijuana, but aims to make more investments in industrial hemp, Mishrikey told me.

Hemp could use the boost after the market struggled to capitalize on the hype following the 2018 farm bill, which legalized hemp and led to over-planting when not enough companies were ready to create end products. In 2021, the number of acres of hemp planted fell to 33,844 from 70,530 a year earlier and 465,787 in 2019 according to New Frontier Data.

Adding to the challenges, the U.S. Food and Drug Administration recently refused to regulate one of hemp's best-known products — CBD, or cannabidiol — as a dietary ingredient, casting a specter of uncertainty over the otherwise booming market for creams, tinctures and gummies.

As a material, hemp remains more expensive than alternatives that come from petrochemicals. But India, Canada, Germany and South Africa are among the countries cracking down on plastics in 2022, making alternatives more economical. Meanwhile, pressure to shift from oil and gas to renewable industries is increasing and carbon credits are becoming more valuable — and that’s an area where hemp has an advantage.

Mishrikey sees the plant’s ability to capture carbon while it’s growing, and its ability to use less water than cotton, as key factors that help it disrupt a range of products. Just one category of industrial hemp alone — precast concrete — is worth around $20 billion, roughly the same size as the current U.S. legal marijuana market, he pointed out.

His fund’s investments include Canadian Rockies Hemp Corp., based in Bruderheim, Alberta, which processes hemp for use in textiles, pulp and paper, animal bedding, rope, composites and automobile components, according to its website. Another is Bast Fibre Technologies Inc., based in Victoria, British Columbia, which has a processing technology to make nonwoven fabrics with natural fibers including hemp. That could be helpful for the booming market in wipes, which are ripe for disruption due to the sewer-clogging gobs known as fatbergs.

Hemp could play a role in many categories: plastics, textiles, papers, building materials, protein for humans and animals, and concrete of all forms. Some of the more innovative applications include hempcrete, where hemp fibers are infused in the mortar, and a Porsche car with some components made of hemp. Some see hemp as a viable alternative to almost anything made from petrochemicals, due to the properties of its cellulose fibers.

The U.S. will have some catching up to do: China is the leading grower of hemp and is  tiptoeing into the CBD market, starting with Hong Kong. The plants also require different agricultural and processing techniques compared to other forms of cannabis, meaning the supply chain will have to be built out from scratch. Processing the plant's tough fibers, called decortication, is an arduous practice that takes heavy machinery and has created something of a bottleneck.

That bottleneck is about to get some help from a $500 million impact fund by rePlant Hemp Advisors, launched in early November by Geoff Whaling, co-founder of Collective Growth Corp., and others including Michael Woods, former chief executive officer and chief operating officer of Rothschild & Co. Asset Management U.S. The fund plans to help develop U.S. infrastructure to process hemp and improve the supply chain, focusing on hemp for food and fiber.

“I probably have a dozen companies call me a week” about using hemp in their products, Whaling said, citing brands like Chobani, Wrangler jeans and Tesla.

“They all want to know where they can get 100 tons of fiber a year, and the answer, at this point, is nowhere,” he said. “No major manufacturer will sign unless there's a two-year supply in a warehouse.”

But slowly, that’s changing.

“We're seeing more countries advancing and mandating use of sustainable fibers, more auto companies adopting natural fiber solutions,” Whaling said. “It really is an industrial hemp revolution.”

Number of the week 

16.6% The compound annual growth rate of the legal U.S. cannabis market from 2020 to 2025, as estimated by New Frontier Data in their 2021 Year in Review report.

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As Lumber Prices Surge, Hemp Blocks Get a Closer Look

By Jean Lotus

The cost of U.S. construction timber is skyrocketing, and a national concern is growing for the  carbon emitted by the construction industry. As homebuilders look for solutions, the nation’s small-but-growing number of hemp builders wonder if building with hemp will finally break through into the mainstream construction consciousness. 

Load-bearing hempcrete wall systems are getting more attention as lumber costs for frame walls has spiked. Photo courtesy of  HempBLOCKUSA
Load-bearing hempcrete wall systems are getting more attention as lumber costs for frame walls has spiked. Photo courtesy of HempBLOCKUSA

The cost of framing lumber, OSB plywood and other wood building materials are adding an average of $36,000 to the cost of a new build, an April study showed — and costs have kept rising.  

As a result, homebuilding solutions that don’t require framing timber, or need less of it, are getting a second look. One solution is the hemp-lime block.

The U.S. construction industry is notoriously resistant to change and innovation, frustrating those  who want to introduce hemp building to the United States, as it has been used for the past 30 years in Europe. 

But ‘hempcrete’ blocks are being noticed because they have been used in European builds for decades, and provide a green, carbon-sequestering, insulative wall solution. 

“We have been working to decarbonize the construction sector for 10 years now and we remain 100% convinced that the hemp block has a crucial role to play,” Charlotte De Bellefroid, spokesperson for Belgium-based IsoHemp, wrote in an email to Hemp Build Mag. 

The company manufactures 1 million hemp blocks per year and will increase production to 5 million blocks per year with a new robotic factory to keep up with demand. 

A new Joe Biden administration focus on reducing carbon in the construction industry, has focused on more efficient buildings, but carbon-sequestering industrial hemp could possibly  have a prominent place in the discussion. 

It will be “impossible” to halve U.S. greenhouse gas emissions by 2030 “without rapid decarbonization of the building sector,” Alliance to Save Energy (ASE) President Paula Glover said in a statement last week. 

Light weight, quick to assemble

Precast hemp blocks, made with chopped hemp hurd and lime binder are much lighter than concrete blocks. The blocks can be quickly assembled and provide insulation rates up to R70. Uniform-density blocks are easy to transport to a worksite, and are pre-cured, saving drying time compared to hand-cast “in situ” or spray applied hempcrete construction. 

Walls made with hempcrete blocks are fireproof, mold proof, pest proof and long-lasting compared to timber-framed homes, which can be constructed of poor quality materials.

Load-bearing systems

By themselves, unlike concrete cinder blocks, hempcrete blocks are not loadbearing, so they can’t be completely swapped out for timber home framing.

However, IsoHemp and others, including the Vicat Group in France, have developed an inner steel post-and-beam support system that can replace timber framing in the block walls.

HempBLOCK USA, a new Australian hemp block supplier, licenses the Vicat system for building in the United States.

“Cinder blocks operate on the premise of a vertical footing and a post beam around top of the house,” Glen Donoghoe of HempBLOCK USA told Hemp Build Mag. 

“The vertical post ties the building together to the beam, and hemp blocks do exactly the same thing.”

Installed blocks are covered with lime plaster or stucco.

Hempcrete has not yet made its way into U.S. building codes and is uncommon in regional or local builds, but building inspectors understand the steel cage and cement support system, Donoghoe said.

The BIOSYS system, licensed by HempBLOCK, uses precast interlocking hemp blocks that can also save labor and time. The outer walls of a house can be built by relatively unskilled labor within days, and about 70% faster than a concrete wall, Donoghoe said. In contrast, it takes about two months to construct outer walls with traditional stick framing, insulation, plastic wrap, siding and drywall.

Donoghoe runs the company from the mountains near Toulouse, France. Currently, he manages container shipments of BIOSYS blocks, about 600 per container, with binder or enough to build the walls of a 2,400 sq. foot home for around $30,000. Shipments from France take six to eight weeks, Donoghoe said. 

He acknowledges this delivery method is not carbon-neutral, but the system is working until a reliable U.S. supply chain can provide building quality hemp hurd in large quantities. 

 “If we can manufacture locally, reduce the carbon footprint and add value to local economies, people would be buying locally and we’d be employing people,” he said.  

“Everybody wins in this scenario.”

‘Lego’ system

Another load bearing hemp block system was developed by British Columbia-based JustBioFiber. 

“We’re the only pre-engineered structural building system based on hemp,” JustBioFiber CEO Denver-based Dave Ladouceur told Hemp Build Mag. 

“We take your drawings and floor plans and our software automatically converts them into block-engineered buildings.”

JustBioFiber made a splash with the Harmless Home, a magnificent hempcrete residence built in British Columbia for a private owner.

But the company has its sights set on large developers building hotels and other large projects. JustBiofiber recently constructed a building on the campus of the University of Trent in Canada. 

The company also builds a foundation block out of recycled plastic which can save time compared to pouring cement foundations.  

“We are not the product to be found at Home Depot,” Ladouceur said. “Our focus is to become the premier sustainable building products company in the world. We are looking for large scale master developers who are going to make a commitment to JBF products in the market. Building one-off housines is not efficient for us,” he added. 

But the pandemic took its toll on the Calgary-based company, he said.

“We have back orders for millions of blocks we can’t fill,” he said.

The company is in talks to build factories in Texas, Missouri, Arizona and New Mexico, he added.

Adobe hemp blocks

Other U.S. engineers and architects have experimented with mixing hemp with other, more load-bearing materials, such as adobe clay, but commercial applications are not quite available in the market. 

Hemp blocks as insulation

Hemp blocks without the structural component can also replace expensive lumber when used as insulation. 

Pre-cured hempcrete bricks 8 x 16 x 6-inches installed with mortar by masonry professionals can be used along with a wood frame construction to provide “shear” horizontal support usually taken up by particle-board OSB.

Hemp blocks work well as insulation because of air pockets trapped in the fluffy hemp within the lime blocks. Unlike Portland cement, walls do not crack with freeze-thaw cycles because hemp and lime regulate moisture inside a building and wick it to the outside. Hemp insulated homes save on heating and cooling costs and have highly rated acoustic properties. 

Whether U.S. builders and consumers will embrace hemp blocks remains to be seen. But lumber prices may cause the U.S. construction industry to think outside the timber-framed box. 

“Changing construction habits is indeed a long term challenge,” IsoHemp’s De Bellefroid said. “Architects, contractors, project owners, we all need to adopt new ways of building.” 

But the hemp block’s thermal and acoustic insulation, water regulation, fire resistance as well as a negative carbon footprint makes it “a material that revolutionizes the building industry,” she added. 

Editor’s note: A JBS block video formerly seen on this story was incorrectly identified as featuring hemp blocks. The video featured another JBS product, a foam block.

Jean Lotus is editor and publisher of HempBuild Magazine.

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EPA Awards $100K Grant To Support Production Of Hemp-Based Bricks For Sustainable Construction

on April 9, 2021

ByKyle Jaeger

The Environmental Protection Agency (EPA) announced this week that it is awarding a Washington State-based company a $100,000 grant to support the development of sustainable bricks made from industrial hemp.

Earth Merchant was one of 24 grant recipients under EPA’s small business innovation research program. The company’s hemp-based OlogyBricks are seen as a “durable, lightweight, carbon-negative” alternative to traditional construction bricks made of concrete or other materials.

EPA said in a notice that the hempcrete product “will improve energy efficiency and indoor air quality in single family homes and other architectural applications.”

Photo by Brendan Cleak 2017

“Industrial Hemp can be grown without pesticides or chemical fertilizers, requires less water than crops like cotton or corn, and reaches maturity one hundred days from planting,” the federal agency said. “Hemp photosynthesizes carbon dioxide with greater efficiency than trees and can be harvested twice per year, doubling the rate of carbon sequestration.”

Further, the hemp blocks can “improve health outcomes for residents” because they contain components that are “antifungal and antimicrobial, reducing the risks of airborne bacteria while also being vapor permeable.”

OlogyBricks also fully produced in the U.S., “where the industrial hemp supply has blossomed following passage of the 2018 Farm Bill” legalizing the crop, EPA said.

This isn’t the first time the agency has expressed interest in the environmental impact of hemp. In 2019, EPA awarded a roughly $12,000 grant to a student-led research team at the University of California, Riverside, to support a study on the use of hemp as an “industrially relevant renewable fiber for construction.”

Also that year, Rep. Tulsi Gabbard (D-HI) introduced a bill that sought to modernize the hemp industry, develop specific guidelines and encourage federal research into a wide-range of potential applications for the crop, including as a concrete alternative.

On another related note, a coalition of former President Donald Trump’s allies had explored whether they could privately fund a wall along the Mexican border that would be constructed using hemp blocks. Former White House Chief Strategist Steve Bannon said that the group was consulting with a Kansas-based hemp company about the possibility of erecting a hempcrete wall along the southern border.

Connecticut Governor Says Marijuana Legalization Will Be Decided By Voters If Lawmakers Fail To Enact Reform

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Wat Te Doen Met De Mannelijke Cannabis Plant?

5 min 19  0Mei 24, 2018 Last updated : Juli 30, 2020GrowingSeedshop

De mannelijke marihuana planten worden vaak afgekraakt, maar hebben hun eigen speciale waarde. Overweeg de volgende keer, voordat je je mannetjes weggooit als je hun geslacht herkent, hun nut en haal alles uit je mannetjes.


De mannelijke cannabis plant wordt vaak belachelijk gemaakt en is vaak onbegrepen. De meeste kwekers gooien mannelijke planten weg zodra ze ze herkennen, wat niet heel gek is in een sinsemilla tuin. Maar denk, voordat je deze mannetjes uitroeit zodra ze hun ballen tonen, aan de volgende dingen, die je zomaar eens aangenaam zouden kunnen verrassen.

Hoewel ze meestal niet zo harsrijk zijn als sinsemilla vrouwtjes, bevatten volledig ontwikkelde mannetjes alsnog een verleidelijk cannabinoïden spectrum. En je krijgt veel, we herhalen, veel pollen van een mannelijke plant als je hem laat volgroeien. Mannelijke planten groeien ook sneller, worden hoger, en rijpen sneller dan vrouwtjes.

Er zit vaak een zonzijde aan wat kan worden beschouwd als een slechte situatie. Als je de pech hebt dat ieder zaadje van je aangeschafte reguliere zaden mannelijk blijkt te zijn, raak dan niet in paniek en gooi ze niet weg. Verzorg ze als een sinsemilla soort en laat je verrassen door de hoeveelheid pollen die je krijgt. En ja, van pollen kun je stoned worden!


Cannabis is een tweehuizige soort, wat inhoudt dat, in tegenstelling tot 80% van de plantensoorten op aarde, marihuana uit aparte mannelijke en vrouwelijke planten bestaat. Hermafrodieten komen echter soms ook voor, vooral als de planten blootgesteld worden aan externe stress of wanneer ze worden gekweekt in een slechte bodem. Hermafroditisme zorgt er vaak voor dat een plant kan overleven in barre omstandigheden. Consistente zelfbestuiving kan echter leiden tot verslechtering van de algehele gezondheid van verschillende generaties.

Bepaalde genen die door ouderplanten worden doorgegeven, leiden voortdurend tot aanpassingen van het nageslacht, waarbij het de beste eigenschappen van beide ouders behoudt. Iedere generatie is steeds beter in staat om te overleven. Dit leidt uiteindelijk tot landsoorten die goed gedijen in specifieke regio’s. Hoewel het niet in theorie is bewezen, houden sommige soorten die voortkomen uit binnen-soorten er meer van om binnen gekweekt te worden. Het klinkt misschien gek, maar sommige gekruiste soorten groeien buiten niet beter, zelfs niet in een vriendelijk klimaat.

Mannelijke planten produceren een overvloed aan fraaie pollen die door de wind worden verspreid. De stuifmeelzakken bestaan uit vijf geel-witte bladstelen, die de helmknoppen beschermen, waarin de pollenkorrels zich bevinden. Eenmaal volgroeid, springt het omhulsel open en geven de gezwollen helmknoppen hun stuifmeel af. Vrouwelijke planten hebben fijne stampers die zijn bedekt met kleverige hars, waarmee ze de tere pollen kunnen opvangen. Eenmaal bestoven, worden de stampers droog, sterven ze af en begint er zich een zaadje te vormen. Na een kleine zes weken zijn de zaden volgroeid en splijten ze de kelk open.


Hashish & Concentraten

Normaal gesproken produceert een cannabis plant meer dan 50% aan mannetjes in een gewas, maar sommige zeer productieve soorten kunnen maar liefst 75-90% aan mannetjes voortbrengen. De natuur moet wel een reden hebben voor deze behoefte aan mannetjes, gezien iedere plant genoeg pollen aanmaakt om velden vol met vrouwtjes te bestuiven. Laten we deze pollen eens bekijken.

Net als bij vrouwelijke planten, bevatten de voortplantingsorganen van mannelijke planten meer cannabinoïden dan de rest van de plant. Klierharen omvatten de bloemkelk, bloemkroon en de meeldraden. Grote sessiele klieren lopen langs de zijden van de helmknop, tussen de vele stuifmeelkorrels in. Als het omhulsel van de knop breekt, komt de hars met het stuifmeel vrij. Net als bij vrouwelijke bloemen, speelt de soort een belangrijke rol bij de potentie van de toppen. Pollen die zijn gedroogd en geperst in een stuifmeel-per of net als ieder andere harsextractie zijn klaargemaakt, veroorzaken een aangename buzz bij iedereen. Mannetjes hebben geen gebrek aan cannabinoïden.Gerelateerd verhaalDe 5 Beste Manieren Om Hasj Te Maken 

Het interessante is dat tijdens de vegetatieve groeifase, de mannetjes hogere concentraties THC laten zien in de bladeren dan vrouwtjes; alleen in de volwassen stadia ontwikkelen vrouwtjes een hoger THC-gehalte. Het vermogen om sinsemilla te creëren is absoluut weggelegd voor vrouwtjes, die daardoor de hoeksteen van de harsproductie zijn geworden. Mannetjes hebben een beperkte levensduur en er zijn helaas geen technieken bekend om de harsproductie te verhogen, en de bestuiving bij mannetjes te vertragen. Ze zijn nu eenmaal wat ze zijn.


Kweken & Evolutie

Oorspronkelijke zijn mannetjes nodig voor kweken en voor de voortzetting van het mengen van bepaalde eigenschappen. Kweken wordt gebruikt om nieuwe soorten te ontwikkelen of om de puurheid van bestaande populaire soorten te behouden. Kweken kan ook worden ingezet om gewenste soorten te laten wennen aan specifieke regio’s als ze buiten worden gekweekt. Lijnteelt, terugkweek en andere homozygote trucs kunnen worden gehanteerd om de evolutie te laten versnellen, waardoor soms nieuwe en interessante eigenschappen de kop opsteken, en waarbij soms vreemde mutanten ontstaan die af en toe niet eens op cannabis lijken.

Je hoeft niet in paniek te raken als er mannetjes aanwezig zijn in je tuin. Als je kweek plannen hebt, kun je de geselecteerde mannetjes wat laten groeien, om hun eigenschappen te ontdekken. De toppen hebben nogal wat dagen nodig om zich te ontwikkelen totdat ze op het punt komen waarop ze openbreken. Het rekken van de groeitijd door vroeg-rijpende toppen te verwijderen, geeft je als slimme kweker een mooi zicht terwijl er geen risico is op bestuiving.

Met genoeg kweekruimte kun je de moeders van de mannetjes apart houden terwijl hun klonen pollen produceren. Afzonderlijk gekloonde vrouwtjes worden vaak bestoven door een selectie van een aantal mannetjes, waarna zaden worden geproduceerd en de toppenkwaliteit zichtbaar wordt. De vaders en moeders worden vervolgens geselecteerd voor de zaadproductie. Zelfs in een kleine ruimte kun je een redelijk kweekprogramma in werking stellen; cannabis in klein formaat kan daarbij zeer geschikt zijn. Je hoeft ook geen volwassen planten vast te binden. Cannabis planten die niet groter zijn dan je duim voorzien je van genoeg mannelijke en vrouwelijke plantenorganen om mee te kweken.

Atypische vrouwtjes veranderen in mannetjes tijdens de bloeiperiode en worden gebruikt voor kruisingen of lijnteelt, waarbij gibberellinezuur of colloïdaal zilver dagelijks over de vrouwelijke toppen wordt gesproeid. Dit is het proces waarbij feminized zaden worden gecreëerd. Feminized zaden worden, hoewel ze ietwat aan de dure kant zijn, steeds populairder, omdat ze iedere keer een vrouwelijk nageslacht garanderen.


Sap Maken & Koken

Mannelijke en vrouwelijke vegetatieve cannabisplanten hebben dezelfde eigenschappen die goed zijn voor je gezondheid. De zuurprofielen zijn hetzelfde en beide zijn rijk aan fenolen en antioxidanten. Uitgeperste bladeren zijn een favoriet drankje voor velen en het menselijk lichaam reageert goed op pure, donkergroene voedingsmiddelen. Alles van de cannabis plant kan worden uitgeperst, behalve de zware takken en dikke stengels waar vaak veel vezels in zitten.Gerelateerd verhaalTop 10 Cannabisrecepten

Als je pollen gebruikt, voeg dan eerst carboxylaat toe aan je stash op dezelfde manier als bij toppen. Net als bij vrouwelijke toppen, zijn geactiveerde pollen krachtiger als ze zijn verzorgd en vervolgens klaar om mee te koken. Bij ieder cannabis recept kun je pollen gebruiken in plaats van gedroogde toppen, waarbij vooral olieen boter een basisbeginsel zijn van het canna-koken en je hier dan ook het beste mee kunt beginnen. Vervolgens ben je voorbereid om op ieder moment te gaan koken.

Gedroogde pollen zijn geweldig om mee te koken en kunnen als meel worden afgewogen, waarbij de voordelen van de cannabinoïden rechtstreeks in het voedingsmiddel komen. Behandel pollen net als milde kief, maar wees voorzichtig; het is zo fijn dat een niesbui een wolk van fijnstof verspreidt over je hele keuken. Als je extracten hebt gemaakt om mee te bakken, gebruik dan simpelweg meer pollen olie om de kracht te versterken.


Wanneer cannabis als hennep wordt gekweekt, stelen de mannelijke planten de show. In gemengde gewassen worden de mannelijke planten gebruikt voor dunne stoffen zoals linnen voor bedden, tafelkleden en zakdoeken. De vrouwtjes worden gebruikt voor grovere toepassingen zoals touw en canvas. Mannetjeswerden bewust apart gezet, gekweekt, geoogst en geschild van de vrouwtjes.

Zonder bestuiving, is er sprake van een aanzienlijke vermindering van de commerciële waarde van het gewas, aangezien het merendeel van die waarde afhankelijk is van de zaden. Cannabis zaden kunnen voor veel verschillende dingen worden gebruikt en hebben veel waarde in de industrie en als voeding. 80% van het totale gewicht van een commercieel hennep gewas bestaat uit zaden. Zonder mannetjes zou er geen bestuiving plaatsvinden.


Cannabis Als Combinatie Plant

Cannabis heeft als aanvulling op het menselijk lichaam ontelbare voordelen. Vezelrijk, energievol, heilzaam, de lijst is langer dan dit artikel. Rondom het huis gekweekt, biedt cannabis weerstand tegen plagen zoals vliegen en muggen. Zelfs thee gemaakt van de bladeren en toppen is een perfect zoet-ruikend insectenwerend middel. Een papje gemaakt van de bladeren heeft ontstekingsremmende eigenschappen en vermindert aanzienlijk blauwe plekken.

Als aanvulling op andere planten, werd cannabis vaak gekweekt rondom andere gewassen, dankzij haar vermogen om plagen af te stoten. Het werd zelfs ooit onkruid genoemd, omdat het zo overmatig in de buurt van kanalen, sloten en duikers groeide. Aangezien het zo snel groeit, verdrijft cannabis veel ongewenste onkruidsoorten zoals schadelijke hoornbloem en bestrijdt het verschillende soorten dodelijke aaltjes.

Cannabis voorkomt ook dat verschillende lucht en bodemplagen populaire commerciële gewassen aantasten, zoals katoen (katoenwormen), aardappelen (schimmel in de vorm van aardappelziekte, en cystenaaltjes) en kool (koolrupsen). Mannetjes produceren, net als vrouwtjes, een aanzienlijke hoeveelheid terpenen. Vooral limoneen en pineen staan bekend om hun insectenwerende kwaliteiten.

De lange penwortel en brede wortelmat worden geliefd om hun vermogen om voedingsarme aarde te doorbreken en te beluchten. Gebruikt als tussengewas of op braakliggende velden, stimuleert cannabis de brosheid van de bodem en de waterpenetratie, en zorgt de dekking van de bladeren voor een dikke laag vitaminerijke mulch, wanneer de planten ouder worden.

Geschreven door: Zamnesia

Zamnesia verbetert continu haar psychedelische producten, assortiment en kennis. Gedreven door de geest van Zammi, streeft Zamnesia ernaar om jou nauwkeurige, feitelijke en informatieve content te bieden.
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Hempcrete or hemp concrete being a carbon-negative (carbon consuming) material is a great alternative for contractors to use in construction works. Hempcrete is prepared by mixing hemp shives (the inner woody core of hemp plant), water, and lime as the binding agent. Hempcrete has low density and excellent thermal and acoustic insulation properties.

There are a lot of hempcrete products available in the market, but the one that stands out is Hempcrete block. Hempcrete blocks are produced by the pressing, ageing and packing of hempcrete through appropriate machinery. The product finally obtained is solid but light, durable, and with excellent insulation properties.

The main source of strength of hempcrete comes from the high silica content (approx. 70%) in hemp shives, which makes it easy for the raw materials to bind together.

Production of Hempcrete Blocks

Earlier, Hempcrete blocks were prepared right at the site by mixing the raw materials and placing the mixture in the formwork, or by using equipment that required a highly qualified workforce.

But today, with the increase in demand and technological advancement, factories have been set up to produce hempcrete-based materials. The production process is divided into three simple steps :

1) Mixing

The raw materials (hemp shives, lime-based binder and water) of hempcrete are proportionately dosed and mixed together.

2) Moulding

Hempcrete obtained is poured in the blocks of widths between 6 and 30 cm in a special press.

3) Open-air Curing

After a while, the frail blocks of hempcrete are placed on an automatic conveyor belt which takes them to a storage area for open air-drying. This brings strength and hardness to the blocks. Depending on the width of blocks, it takes around 6-10 weeks for the blocks to become ready to use.

Applications of Hempcrete Blocks

  1. As external and internal Wall insulation
  2. As floors and roof Insulation
  3. Underneath floors
  4. As Plasters
  5. New Builds
  6. For Insulating older buildings
  7. Renovation

Advantages of Hempcrete Blocks

  1. Hempcrete has a negative carbon footprint of -72.0 kg/m² of wall which makes hempcrete block construction energy efficient and eco-friendly technique.
  2. The construction doesn’t take much time and reduces the labour costs and results in a cleaner site.
  3. Hempcrete is a low thermal mass material which means that it absorbs the heat during the day and emits it out during the night thus providing energy-cost savings.
  4. The quasi ductile behaviour of hempcrete blocks makes it reusable without affecting its structural properties.
  5. Hempcrete is a microbe and parasite resistant material.
  6. Hempcrete blocks have a fire-rating of 60-120 minutes.
  7. The low U-value (thermal transmittance) and enhanced insulation of hempcrete blocks help deliver low operational costs through reduced heating and cooling requirements.
  8. Hempcrete blocks are light in weight and are easy to transport and handle.
  9. Hempcrete blocks have excellent heat and sound insulation properties.
  10. Hempcrete blocks help in constituting breathable walls.

Disadvantages of Hempcrete Blocks

  1. Hempcrete has a low compressive strength and elastic modulus which makes it unsuitable for bearing direct loads- It needs a frame to carry the loads.
  2. Hempcrete walls are thicker which risks the reduction in carpet area.
  3. The raw material hemp of hempcrete is illegal to grow at a lot of places which makes it necessary for you to have it shipped from some other place.
  4. Forms are needed which must be continuously raised as you build.
Akshay Dashore

Akshay Dashore

EDITORAkshay is a Civil Engineer who has experience in various Pile foundation projects. Civil Engineering intrigues him but what intrigues him, even more, is the implementation of hybridized materials in construction projects. He is the author, editor, and partner at

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Biomass, or the leftover plant material, can be used in a numerous ways. Biomass comes in a number of its own varieties. Some farmers mulch the entire plant. Others focus solely on leaves or roots. Some solely use trim to create high-potency oils. Using biomass promotes regenerative, sustainable gardening, and can also be quite enjoyable.

Many farmers sell biomass to concentrate processors. This is a great way to increase revenue and build relationships within the local cannabis community.

These leftover materials can be used to make a number of specialized products. Take a look at just some of the ways to utilize the rest of your hemp and cannabis harvest.


The stalks of hemp pants can be broken down and shipped off for use in all kinds of textile industries. These industries include building materials, garments, and even utility equipment. Businesses with accounts on Kush.comcan connect directly with buyers from across the nation. Create your free account now by clicking here.

If you don’t have a supply chain, and aren’t a member of, then you could simply mulch them. Mulching can be done by shredding the stalks. Shredding creates more surface area for a quicker decomposition. Shredded stalks can be applied on top of the soil in your garden, yard or in the compost bin. 

Mulching or composting is very valuable, because it gives life back to the soil. In compost micro-organisms break down organic matter. This produces nitrogen and other minerals in the process. 

Mulched stalks can be returned to a crop next season. You could also use them to grow a variety of other crops if you choose, because it’s nutrient dense. 

In mulch, the shredded pieces of stalk decrease evaporation and allow the soil to hold moisture more effectively. This can be great for growing in arid, hot climates. 

A micro-biome is also created when mulch is applied to the ground as well. This creates an environment for beneficial bugs, bacteria, and other wildlife to grow and thrive

Stalks can be shredded by purchasing or renting a wood chipper. You could also simply mow them with a gas powered mower or tractor with a shredder attached.


Sugar leaves are rich and coated with trichomes giving them higher CBD and THC content. Although not as potent as their bud brothers and sisters, they can still be used to make tea, hash, or topical oils. 

For hash, sugar leaves can be dried, chopped, and further processed into hash or cannabutter. These processed items can go into a wide variety of products.

Larger fan leaves are perfect for making teas. Fan leaves can be dried and stored in a sealed container with a silicone packet to regulate moisture. When you’re ready, the leaves can be placed in a cup, bathed in hot water and sipped to your enjoyment and leisure. 

For oil production, a great number of leaves have to be collected. Once you have enough, press them to gain a rich oil that can be used in a multitude of products or distributed on it’s own.


As with all parts of biomass, roots can be used in a multitude of ways. Roots have a long history of medicinal use due to their anti-inflammatory properties. 

Roots can be brewed into a tea for gastrointestinal relief. They are also commonly processed into topical ointments or salves for skin ailments.  
Processing roots has been done for generations across the world. Creams and salves have been known to help with arthritis, gout, burns, rashes, and muscle pain. 

Want to give it a try at home? Boil some into your next cup of tea or process a few roots for use in a topical lotion to treat aches and pains. To learn more on the benefits of cannabis roots check out The National Library of Medicine.


Let us not forget about the soil. Here is where all the magic begins. Feed the soil and it will feed your plant. 

At the end of the harvest, soil is low in minerals and nutrients, but can still be used a number of ways. If you plan on replanting in the same soil, try applying some minerals and additions. Compost or a seed starting solid fertilizer (NPK 4-4-4) are great places to start. 

Also, before planting any new seeds or started plants, give the soil a good till or cultivation. This can be as simple as stirring the new compost or fertilizer into the soil with your hand if it’s in pots. You could also get a cultivator and till up the ground if outdoors. This not only combines the soil with the new amendments, but it also introduces a vital compound into the equation, oxygen. 

This aerates the soil and allows life to grow more vigorously. In this case microorganisms and beneficial fungi. This simple task can go a long way in starting your next crop in the right direction. If you plan on replacing all your potting soil with new potting soil, the old soil can be composted as well. 

When going this route, be sure to combine the soil with as close to equal parts brown material ( dried leaves, dried stalks, dried “brown” organic matter) and green material (freshly cut “green” leaves, stems, veggies, etc.). This allows the compost to start it’s process of new life with the right balance of ingredients. 

Remember composting isn’t only decomposing matter, it’s also consuming matter. It’s about creating the right environment for beneficial bacteria, fungi, insects, and worms to live, work, and feed in harmony. Giving you a nutrient rich source for enriching your soil and growing healthy crops for years to come.

[PRO TIP] Remember that any plants or soil with pests or disease should not be composted. These will continue to grow and infect your compost bin and every future crop it is applied to. A trash heap, landfill, or burn pile is more suited place to dispose of it

#HEMPNATIONONE #hemp #leaves #stalks #roots #soil #garbagedoesntexist #material #life #regrowth #mulch #environment#

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Agricultural hemp foods improve quality of, life

Restaurants Serving Agricultural Hemp Foods Improve Quality of Life

The oldest known food catering establishments dated as far back as the Song Dynasty (960-1279) whose paper money economy and healthy middle class allowed them to cater to the residents who lived there as well as travelers. All other examples of eating establishments came in the form of Inns and catered to the weary traveler. Though located in busy areas, the local residents were not patrons of these establishments.
The word Restaurant comes from the French Word Restaurur meaning “a food which restores”. The first restaurants emerging in Europe, specifically France, Spain and England in the 16th and 17th centuries served food family style or as buffets bringing people together to share a common meal. Waiters did not begin carrying around platters of food as a part of service until the beginning of the 18th century around the same time patrons began choosing items from a menu.

Throughout history, restaurants and eating establishments have provided nourishing social experiences locally and abroad. Community meetings are held in these spaces as well as personal and business engagements, making restaurants the backdrop for memorable human interactions. At this point there are so many restaurants in so many places many no longer eat at home preferring the convenience of a well cooked meal without having to deal with the business of making it. Serving a meal for people is an art that spans time and centuries, but today’s market is competitive and saturated.

It must be difficult to own and operate a restaurant. Politics, society and misinterpretations of what is real and healthy shape the decision businesses have to make. Tough times means cutting costs wherever possible and restaurants often times are forced to compromise quality products used in the foods served just to keep the lights on. To make matters more gloomy, today’s degrading economy brings health articles advising people not to eat out to avoid health issues and reports of families cutting their entertainment budgets to make ends meet.

What can a restaurant do to stand out in a sea of dining choices? Old marketing models sell atmosphere and service, friendly staff and discounts for large quantities of food. These models do not fit in a World where people care about what they eat. The staff can be as nice as they want, but ultimately, if the food lacks nutrition, there is no value in what’s being offered to the community.
Agricultural Hemp provides a solution. Hemp Seeds and Oils provide all of the amino acids, Omega 3 and 6’s and numerous other necessary nutrients the body needs to function properly. One is able to get the complete recommended daily supply in less than 3 Tablespoons of seed, oil or protein powder. On a molecular level, the proteins supplied by hemp rid the body of bad cells and replace them with new functioning cells daily. All of that and it’s organic, glutton free and hyper-allergenic.

Hemp Flour, Hemp Oil, Hemp Protein Powder and Hemp Seeds are easy to use as substitutions in recipes already served on the menu or inspire something new! Restaurants are able to boast the healthiest food in the market and the community benefits all the way down to the cellular level. It’s easy to produce effective, truthful marketing copy when the food served improves the quality of life in such a personal way. Mission statements should reflect the restaurants desire to serve food allowing them to live up to the standards the French name implies when defined as “a food which restores”.

Consumers have been known to choose healthier products and services over destructive ones. They have proven the value of focusing on buyers needs and many businesses have endured the downturn of the economy because of their commitments to the good of the communities they serve. This is the year to try something new and Agricultural Hemp Foods are a perfect way to show appreciation for your customers and communities as a whole. What could be more sustainable than that?
Get Hemp!! It is not only renewable it is Healthy for you!