Green House Seeds | cannabis seed banks

Just by browsing the catalogue of the Green House Seeds seed bank, you’ll be impressed. Dozens of varieties, each more attractive than the last, are waiting for a new home. Currently, they are close to reaching 100 varieties, including autoflowering, feminised, and regular seeds.

How was the Green House Seeds seed bank created?

Green House Seeds is a cannabis seed company founded in Amsterdam, Netherlands, in 1992 by cannabis breeder Arjan Roskam. Arjan Roskam is known for developing many of the most popular and recognised cannabis strains worldwide, including Super Silver Haze, White Widow, and Neville’s Haze. The company has become one of the most respected and well-known names in the cannabis world and has won numerous awards at cannabis competitions over the years. Today, Green House Seeds remains one of the leading cannabis seed companies globally, continuing to develop new strains and genetic improvements.

Green House is a company that doesn’t just sell cannabis seeds; it sells a lifestyle. From their chain of coffeeshops to their line of clothing and accessories, plus a service for renting apartments in central Amsterdam, Green House Seeds has become an empire, and its owner, Arjan Roskam, has dubbed himself “the self-proclaimed King of Cannabis“.

History of Green House Seeds

During the cannabis boom in Amsterdam, most growers focused on short-flowering, high-yielding plants, primarily driven by greater economic profitability. At that time, the then-young Arjan Roskam decided to take a different path, aiming for the highest possible quality, sourcing exotic seeds collected by him and his friends from various parts of the world.

Years after travelling the world, particularly exploring landrace Sativa strains, Arjan returned to Amsterdam, only to face his first setback. His smile, the result of his discoveries and stabilisation work with those exotic Sativa seeds, faded when he offered his products to local coffeeshops.

The response he received was not good, and his Sativa varieties did not get the welcome he had hoped for. However, Arjan is a persistent man, and in 1992, he opened his own coffeeshop called The Green House.

From that moment on, the history of cannabis changed. Soon, tasters noticed the difference between the overly narcotic strains typically found in the Netherlands. This led to the creation of the Dutch Green House Seeds seed bank, and its strains soon gained recognition and multiple awards. The highlight of his exploration work came in 1995 when Arjan was featured on the cover of High Times magazine.

Since then, both his business and reputation have grown tremendously. His coffeeshops attract visits from celebrities, and his seed line, as well as his range of nutrients and other cultivation products, gain more followers every day. In recent years, Arjan has also ventured into audiovisual territory, with his educational YouTube channel and the production of documentaries, in addition to his new brand, Strain Hunters.

Green House Seeds Philosophy

The philosophy of the Green House Seeds cannabis seed bank can be described as a combination of innovation + research + business vision.

For many years, Arjan, along with his inseparable companion Franco Loja, travelled the world in search of the most exotic strains. They also worked to normalise the use of cannabis and made significant investments in development to stay ahead of the curve and seize business opportunities as legislative changes opened up in different parts of the world.

Unfortunately, Arjan and the company experienced another setback a few years ago when his loyal companion Franco Loja passed away, leaving the business in shock. This period lasted for several seasons, but the company has since recovered and returned to operating at its highest level.

Types of Green House Seeds

Today, Green House Seeds is probably the best-selling seed bank worldwide, and its reputation remains strong, backed by numerous High Times Cannabis Cups, Highlife Cups, and many other awards the company has won over its decades of work in the industry.

Green House Seeds’ cannabis seeds are considered some of the leaders in Cannabis genetics. Until 2008, they focused only on regular seeds, but that year the company made a 180-degree shift, changing its entire catalogue to focus more on feminised seeds, while offering very competitive prices.

Over time, with the emergence of autoflowering seeds, Greenhouse also began offering them within its already extensive catalogue, primarily releasing automatic versions of their great hits.

Most Famous Varieties

Green House Seeds cannabis seeds have won numerous high-level awards. On this blog, we have monographs about some of them, and here are some links to explore them in depth, as well as links to our online store.

Super Silver Haze

We’ll start with Super Silver Haze, a predominantly Sativa cross between Northern Lights #5 and Haze, which swept the High Times Cannabis Cup, being the only strain to win the top prize three years in a row.

Hawaiian Snow

Next up is Hawaiian Snow, a very Sativa-dominant strain, a cross between Laos and Hawaiian Sativa, described by tasters as incredibly uplifting and invigorating. It delivers a very cerebral, highly social, and long-lasting high. This strain won best cannabis of 2003 and the first prize at HTCC 2003.

Big Bang

Big Bang Greenhouse Seeds is a very famous and affordable cross, created by crossing the renowned and award-winning Northern Lights and El Niño. The result, as the name suggests, is explosive.

Super Lemon Haze Auto

Among the automatic strains, we highlight Super Lemon Haze Auto, an almost exact autoflowering replica of the multi-award-winning Super Lemon Haze, but much faster.

Other Successful Strains from Greenhouse Seeds

In recent years, this institution has continued to research and create new Cannabis strains. Here are more successes from Arjan and his team.

Razuberi

Razuberi stands out for its delicious sweet berry flavour profile, dominated by fruity terpenes. Its genetics combine sativas and indicas to produce a balanced effect, ideal for daytime and social use.

Black Toffee Auto

Black Toffee Auto is an autoflowering variety blending sweet and earthy flavours. This plant is known for its fast lifecycle and high yields in a short time.

Sugarlato Auto

Sugarlato Auto combines the best of Gelato and Sugar Black Rose varieties. Its balanced effect makes it a versatile option for both recreational and medicinal users, with a quick flowering time thanks to its autoflowering genetics.

Moweeto

Moweeto is known for its tropical flavour and an uplifting, energising high. This sativa-dominant strain boasts potent genetics, making it an excellent choice for those seeking creativity and focus.

Gran Jefa

Gran Jefa is a strong, indica-dominant variety, ideal for those seeking relaxing effects and a soothing high. Its robust genetics make it resistant to difficult growing conditions.

Milky Dreams

Milky Dreams offers a creamy flavour with sweet undertones. With indica dominance, this strain is perfect for relaxing at the end of the day thanks to its calming and sedative effects.

Tarte Tatin

Tarte Tatin is a predominantly indica strain with a flavour profile that resembles sweet desserts. Ideal for those who love sweet genetics, its effect is both relaxing and euphoric.

Nori Cake

Nori Cake combines sweet and earthy flavours with balanced genetics. Its effects are both mental and physical, offering deep relaxation without extreme sedation.

If you want to get your hands on some of the varieties from this great cannabis seed brand, check out our online seed store, where you’ll find the best autoflowering and feminised seeds from Green House Seeds.

Greenhouse Future Plans

It’s hard to say exactly what Greenhouse Seeds’ future plans are, as it is a private company and does not publicly share its long-term goals. However, it is likely that the company will continue to work on creating and improving high-quality cannabis strains and researching and developing new techniques and technologies in the cannabis field. Greenhouse Seeds may also continue to expand internationally and collaborate with other companies and organisations in the cannabis sector. Overall, it is likely that Greenhouse Seeds will remain one of the leading cannabis seed companies worldwide and continue to lead the way in innovation and advancement in the cannabis sector.

That concludes this monograph on Greenhouse Seeds, follow us on social media and subscribe to our newsletter. To continue reading, we recommend discovering other famous cannabis seed banks.

Brais Nieto

Founder of Experiencia Natural, creative and entrepreneur, designer, master in grower and marketing. For a normalization of all plants and substances, giving priority to patients and users.