The first example of the use of hempcrete was in 1986 in France with the renovation of the Maison de la Turquie in Nogent-sur-Seine by the innovator Charles Rasetti.[30] In the UK hemp lime was first used in 2000 for the construction of two test dwellings in Haverhill.[31] Designed by Modece Architects,[32] who pioneered hemp's use in UK construction, the hemp houses were monitored in comparison with other standard dwellings by BRE. Completed in 2009, the Renewable House is one of the most technologically advanced made from hemp-based materials.[33] The first US home made of hemp-based materials was completed in August 2010 in Asheville, North Carolina.[34]

The seeds are sown with grain drills or other conventional seeding equipment to a depth of 1.27 to 2.54 cm. Greater seeding depths result in increased weed competition. Nitrogen should not be placed with the seed, but phosphate may be tolerated. The soil should have available 89 to 135 kg/ha of nitrogen, 46 kg/ha phosphorus, 67 kg/ha potassium, and 17 kg/ha sulfur. Organic fertilizers such as manure are one of the best methods of weed control.[60]


In the early 1990s, industrial hemp agriculture in North America began with the Hemp Awareness Committee at the University of Manitoba. The Committee worked with the provincial government to get research and development assistance, and was able to obtain test plot permits from the Canadian government. Their efforts led to the legalization of industrial hemp (hemp with only minute amounts of tetrahydrocannabinol) in Canada and the first harvest in 1998.[85][86]

Considering its popularity from long ago, when even our forefathers appreciated the value of hemp seeds, it seems unusual that the plant would have such a bad reputation today. Both George Washington and Thomas Jefferson grew hemp plants in their gardens. Hemp paper was even used for the Declaration of Independence, and Benjamin Franklin produced hemp paper at his mill. The environmental advantages and nutritional benefits of growing industrial hemp seem to many to be worth lifting its restrictions.


In the UK, the Department for Environment, Food and Rural Affairs treats hemp as a purely non-food crop, but with proper licensing and proof of less than 0.2% THC concentration, hemp seeds can be imported for sowing or for sale as a food or food ingredient.[19] In the U.S., imported hemp can be used legally in food products and, as of 2000, was typically sold in health food stores or through mail order.[16]
The Spaniards brought hemp to the Americas and cultivated it in Chile starting about 1545.[115] Similar attempts were made in Peru, Colombia, and Mexico, but only in Chile did the crop find success.[116] In July 1605, Samuel Champlain reported the use of grass and hemp clothing by the (Wampanoag) people of Cape Cod and the (Nauset) people of Plymouth Bay told him they harvested hemp in their region where it grew wild to a height of 4 to 5 ft. [117] In May 1607, "hempe" was among the crops Gabriel Archer observed being cultivated by the natives at the main Powhatan village, where Richmond, Virginia is now situated;[118] and in 1613, Samuell Argall reported wild hemp "better than that in England" growing along the shores of the upper Potomac. As early as 1619, the first Virginia House of Burgesses passed an Act requiring all planters in Virginia to sow "both English and Indian" hemp on their plantations.[119] The Puritans are first known to have cultivated hemp in New England in 1645.[115]
Hemp seed food products are also considered more allergy-free than many other seeds. Hemp seeds contain the perfect balance of essential amino acids for sustaining good health. In addition, hemp seed oil contains necessary fatty acids, also known as good fats. Not only can hemp seeds provide valuable nutritional benefits to people, but they can also be used in pet foods and taste good too.
Eating shelled hemp seeds will not produce the same effects as smoking marijuana. According to David P. West Ph.D., a plant researcher who has studied hemp extensively, the compound in marijuana that produces its psychotropic effect, THC, is only produced in the flowers, buds and leaves of the cannabis plants, not the seeds. However, since the seeds come into contact with the rest of the plant, some residue may remain on the seeds after processing and shelled hemp seeds may contain extremely low levels of THC. The exact levels vary by brand, so if you are very sensitive to THC and happen to buy a brand with higher-than-average levels, you may experience euphoria or hallucination. It is also highly unlikely --- although not impossible --- to get a positive drug test result after consuming large amounts of shelled hemp seeds.
Hemp seeds are high in nutritional value and contain 20 different varieties of amino acids and all nine of the essential amino acids (like flax). Some essential amino acids can't be naturally produced by the body and these seeds have the capacity to supplement them in the body. They contain high amounts of protein, which helps in strengthening the immune system, thereby, reducing the instances of diseases, besides helping in excreting toxins from the body. Studies in the recent past have shown that consuming hemp seeds whether raw or in oil form, has the capacity to aid in the healing process of diseases related to immune deficiency. There is no other food substance which contains such high quantities of essential fatty acids found in hemp seeds, higher than even flaxseed and other nut or seed oil as well as containing high amounts of vitamin E and trace minerals. It has a balanced ratio of omega 3 to 6 fats at around a three to one ratio. This won't help correct your omega balance if it's off, but it gives you the right balance to start with.
Although hemp and marijuana are members of the same species, Cannabis sativa, they're in effect completely different plants. There are about a dozen varieties of hemp plants that are grown for food, and all of them contain about 0.001 percent Tetrahydrocannabinol, or THC, the main psychoactive ingredient in marijuana. This means you can eat as much hemp as you want and you'll never have to worry about getting high or failing a drug test. Although certain states have begun to legalize the cultivation of industrial hemp in the last couple of years, the hemp seeds you can find at your grocery or health food store were likely grown in Canada or China.
Hemp crops are tall, have thick foliage, and can be planted densely, and thus can be grown as a smother crop to kill tough weeds.[47] Using hemp this way can help farmers avoid the use of herbicides, gain organic certification, and gain the benefits of crop rotation. However, due to the plant's rapid and dense growth characteristics, some jurisdictions consider hemp a prohibited and noxious weed, much like Scotch Broom.[48]

The Spaniards brought hemp to the Americas and cultivated it in Chile starting about 1545.[115] Similar attempts were made in Peru, Colombia, and Mexico, but only in Chile did the crop find success.[116] In July 1605, Samuel Champlain reported the use of grass and hemp clothing by the (Wampanoag) people of Cape Cod and the (Nauset) people of Plymouth Bay told him they harvested hemp in their region where it grew wild to a height of 4 to 5 ft. [117] In May 1607, "hempe" was among the crops Gabriel Archer observed being cultivated by the natives at the main Powhatan village, where Richmond, Virginia is now situated;[118] and in 1613, Samuell Argall reported wild hemp "better than that in England" growing along the shores of the upper Potomac. As early as 1619, the first Virginia House of Burgesses passed an Act requiring all planters in Virginia to sow "both English and Indian" hemp on their plantations.[119] The Puritans are first known to have cultivated hemp in New England in 1645.[115]
A mixture of fiberglass, hemp fiber, kenaf, and flax has been used since 2002 to make composite panels for automobiles.[37] The choice of which bast fiber to use is primarily based on cost and availability. Various car makers are beginning to use hemp in their cars, including Audi, BMW, Ford, GM, Chrysler, Honda, Iveco, Lotus, Mercedes, Mitsubishi, Porsche, Saturn, Volkswagen[38] and Volvo. For example, the Lotus Eco Elise[39] and the Mercedes C-Class both contain hemp (up to 20 kg in each car in the case of the latter).[40]
Concrete-like blocks made with hemp and lime have been used as an insulating material for construction. Such blocks are not strong enough to be used for structural elements; they must be supported by a brick, wood, or steel frame.[28] However, hemp fibres are extremely strong and durable, and have been shown to be usable as a replacement for wood for many jobs, including creating very durable and breathable homes. The most common use of hemp lime in building is by casting the hemp and lime mix while wet around a timber frame with temporary shuttering, and tamping the mix to form a firm mass; after the removal of the temporary shuttering, the solidified hemp mix is then ready to be plastered with a lime plaster.[29]
Queensland has allowed industrial production under licence since 2002,[78] where the issuance is controlled under the Drugs Misuse Act 1986.[79] Western Australia enabled the cultivation, harvest and processing of hemp under its Industrial Hemp Act 2004[80], New South Wales now issues licences[81] under a law, the Hemp Industry Regulations Act 2008 (No 58), that came into effect as of 6 November 2008.[82] Most recently, South Australia legalized industrial hemp under South Australia’s Industrial Hemp Act 2017, which commenced on 12 November 2017.[83]
Furthermore, hemp seed has a final unique characteristic. Gamma-linoleic acid, commonly known as GLA, is a rare form of omega-6 fatty acid that can be found in very few edible sources, but it can have amazingly beneficial effects on your health. It has been connected to improving a number of cardiovascular conditions, and it helps to lower negative cholesterol while increasing the presence of beneficial cholesterol. Overall, this seed is a powerful weapon against damage to your heart.
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