Buy greenhouse seeds from cannabisseeds.ie where we offer all the classic greenhouse strains at the lowest price anywhere online. Greenhouse Seeds Company is the brain child of the self-styled King of Cannabi, Arjan Roskam and has been producing award winning cannabis strains since the 90’s. Greenhouse Seeds aim to produce the best cannabis strains in the world buy tracking down unique genetics and making new and interesting hybrids to increase yields and potency. Greenhouse seeds were one of the first companies to publish the THC levels of their strains and have constantly strived to create strains with higher and higher THC content. Greenhouse produce feminised versions of famous strains such as white widow and cheese as well as their own unique strains like the cannabis cup winner Super Lemon Haze. See the full range of Greenhouse cannabis seeds below.