Green Thumb Growing Grounds is a wholesale nursery located in San Fernando Valley in the city of Canoga Park. Green Thumb has been providing material for the landscape trade since 1946 and at the same time counts with five retail stores throughout Southern California for all do it yourself homeowners. Green Thumb carries over 3000 different varieties of plants which include shrubs, trees, drought tolerant plants and much more as well as other landscape material such as fertilizers, pots, stakes, bulk soil and other helpful supplies for landscape professionals.