GREENHOUSE — Holland: In years past, Greenhouse seeds/buds swept virtually all categories of the Cannabis Cup. Most of their varieties were based on White Widow genetics, one of the stalwarts of the cannabis-seed industry. This premium seed company (10 seeds $110-$250) is run by frontman Arjan and several others who prefer to stay in the background. No new outstanding varieties are available, and the company rests on their laurels. Check out their bud at one of three coffeeshops in Amsterdam. Site: greenhouse.org, or find their seeds at the Flying Dutchman in Amsterdam, Amsterdam Seed Co., Kind Seed Co., and several others.