The history of hemp

05/05/2025
Tall hemp plants growing against a blue sky

The history of hemp goes back about 12,000 years: genetic evidence suggests Cannabis sativa was first domesticated in East Asia in the early Neolithic. Fibre hemp spread west into the Middle East and Europe about 4,000 years ago and was grown for rope, cloth and seed for centuries. In the 20th century, drug laws pushed hemp into decline. Today it is grown again under licence, defined by its low THC content.

Key facts

Domestication
East Asia, early Neolithic, about 12,000 years ago (genomic estimate)
Wild origin
Fossil pollen points to the north-eastern Tibetan Plateau; wild cannabis reached Europe 1.8–1.2 million years ago
Fibre and drug types split
About 4,000 years ago, when farmers began selecting strongly for fibre or for resin
1961
The UN Single Convention excludes cannabis grown only for fibre, seed or horticulture
UK today (as of October 2026)
Hemp is grown under a Home Office licence from approved seed with no more than 0.2% THC
EU today
33,020 hectares of hemp in 2022, up from 20,540 hectares in 2015

Where does hemp come from?

For a long time, Central Asia was assumed to be where cannabis was first cultivated. A 2021 study that sequenced the genomes of 110 cannabis plants from around the world pointed instead to East Asia. It found that "C. sativa was first domesticated in early Neolithic times in East Asia" and that all of today's hemp and drug varieties descend from an ancestral gene pool that survives in feral plants and old landraces in China (Ren et al., 2021).

The wild plant is much older. Fossil pollen points to the north-eastern Tibetan Plateau as the centre of origin, and shows that cannabis had reached Europe by 1.8–1.2 million years ago, long before farming (McPartland, 2018).

A globe showing East Asia, where hemp was first domesticated

When did people start using hemp for fibre?

Early cannabis was a multipurpose crop. According to the same genomic study, farmers later selected it in two directions: tall, fibre-rich hemp and resin-rich drug types. The researchers also found that each type lost the function of genes for one of the two competing cannabinoids, as farmers selected "for increased fiber production or psychoactive properties" (Ren et al., 2021). This fits with today's hemp making mainly CBD and very little THC; our guide to what hemp is explains the difference.

Hemp through history: a short timeline
When What happened
1.8–1.2 million years ago Wild cannabis reaches Europe (fossil pollen)
About 12,000 years ago Cannabis is domesticated in East Asia (genomic dating)
About 4,000 years ago Fibre and drug types diverge; fibre hemp spreads west
1961 The UN Single Convention controls cannabis but excludes cultivation for fibre and seed
1971 The UK Misuse of Drugs Act lists cannabis as a Class B drug
Today Licensed low-THC hemp is grown again across Europe and in the UK

What was hemp used for in the past?

  • Fibre: the long fibres in the stalk were made into cord, rope, sailcloth and cloth.
  • Seed: the seeds were eaten and pressed for oil.
  • Resin: separate drug-type plants were used in rituals and as an intoxicant. For the story of THC itself, read the history of THC.
A sailing ship, a reminder of hemp's use in sails and rope
Hemp fibre with hemp leaves

Why did hemp farming decline?

In the 20th century, laws aimed at drug cannabis also caught hemp, because both are the same plant. Internationally, the 1961 Single Convention on Narcotic Drugs put cannabis under control. But it states: "This Convention shall not apply to the cultivation of the cannabis plant exclusively for industrial purposes (fibre and seed) or horticultural purposes" (United Nations, 1961, Article 28(2)). That exemption made hemp's later comeback possible.

In the UK, the Misuse of Drugs Act 1971 lists "Cannabis and cannabis resin" as Class B drugs. Growing hemp therefore needs a Home Office licence (Home Office, 2025).

A judge's gavel on a wooden desk

The confusion has lasted. Many people still mix up hemp and marijuana; our guide to cannabis, marijuana and hemp sorts out the terms.

How did hemp make a comeback?

Today's rules tie hemp to its THC content. In the UK, the Home Office licenses hemp cultivation from approved seed varieties with a THC content of no more than 0.2%. The licence does not cover the leaves and flowers, which remain controlled (Home Office, 2025). In the EU, raw hemp and hemp seed for sowing must not exceed 0.3% THC. The EU hemp area grew from 20,540 hectares in 2015 to 33,020 hectares in 2022, and France grows more than 60% of the crop (European Commission).

A stack of hempcrete blocks

What is hemp used for today?

The European Commission lists textile fibre, food and animal feed, construction materials such as hempcrete and insulation, paper, and newer uses in the car and cosmetics industries (European Commission). For CBD, the flowers are the valuable part. See the uses of hemp and how hemp is grown.

Different hemp products on a table

From our production

Our hemp is grown in Central Switzerland. Switzerland's dry weather suits hemp; it grows much better here than in moister regions such as parts of the Mediterranean.

— Robin Roy Krigslund-Hansen, co-founder and CEO

Frequently asked questions

Where did hemp originate?

Fossil pollen points to the north-eastern Tibetan Plateau as the origin of the cannabis genus. A 2021 genomic study found that the crop was first domesticated in East Asia, about 12,000 years ago.

How was hemp used in history?

The stalk fibre was made into cord, rope, sailcloth and cloth, and the seeds were eaten and pressed for oil. Separate drug-type plants were used for their resin.

When did hemp reach Europe?

Wild cannabis reached Europe more than a million years ago, according to fossil pollen. Cultivated fibre hemp spread west into Europe and the Middle East about 4,000 years ago.

Why was hemp banned?

Drug laws aimed at cannabis also covered hemp, because they are the same plant. The 1961 UN Single Convention, however, excludes cultivation solely for fibre, seed or horticulture.

Is hemp legal to grow in the UK today?

Yes, with a Home Office licence. As of October 2026, growers must use approved seed with no more than 0.2% THC, and the licence does not cover the leaves and flowers.

This article is general information about the history of hemp and the law. It is not legal advice, and laws change. Formula Swiss CBD oils are sold as cosmetics for use on the skin. Read our full disclaimer.

Last reviewed:

Sources

  1. Ren G, et al. Large-scale whole-genome resequencing unravels the domestication history of Cannabis sativa. Science Advances 2021. doi:10.1126/sciadv.abg2286
  2. McPartland JM. Cannabis systematics at the levels of family, genus, and species. Cannabis and Cannabinoid Research 2018. doi:10.1089/can.2018.0039
  3. United Nations. Single Convention on Narcotic Drugs, 1961, as amended by the 1972 Protocol, Article 28(2).
  4. Misuse of Drugs Act 1971, Schedule 2, Part II (Class B drugs). legislation.gov.uk
  5. Home Office. Low THC cannabis (industrial hemp) licensing factsheet. GOV.UK, updated 18 December 2025.
  6. European Commission, Agriculture and Rural Development. Hemp. agriculture.ec.europa.eu
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Robin Roy Krigslund-Hansen

Robin Roy Krigslund-Hansen

About the author

Robin Roy Krigslund-Hansen is the co-founder and CEO of Formula Swiss and is responsible for formulation. Since co-founding the company in 2013, he has written about hemp, CBD, and the cannabis industry. His perspective draws on building Formula Swiss, conversations with researchers, and supporting CBD research.

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