Green House Seed Co.

Green House Seed Co. is probably the most decorated cannabis seed bank in the world, renowned for pioneering global cannabis genetics and winning over 40 High Times Cannabis Cups. Founded in Amsterdam in 1985 by Arjan Roskam, the brand evolved from a single coffeeshop into a massive global empire spanning seeds, nutrients, clothing, and research.

Some of their famous strains include:


Super Lemon Haze
 A massive award-winner celebrated for its tart, energetic, and intense terpene profile.
White Widow
 Invented by Ingemar (De Sjamaan) at 1987 White WIdow is a historic, resin-heavy staple that helped put Dutch breeding on the global map.
Super Silver Haze
 A highly potent sativa hybrid that dominated competitions throughout the late 1990s.


Another element of the Green House brand identity is Strain Hunters. This project follows the founders Arjan Roskam and Franco Loja and the breeding team as they trek through isolated regions (such as Malawi, India, and Colombia) to locate pure, untouched landraces. These global journeys are documented in popular film series to educate the public on the botanical history of the plant. Seeds ore available under the own Strain Hunters USA brand.