Pacific Substrates - Ready.Set.Grow!™ All-In-One Sterilized Grain and Substrate - 3 LB - Case of 12This all in one mushroom grow kit from Pacific Substrates combines Paddy Poo and Goonie Grains to provide fast colonization time, low contamination risk and bountiful harvest. Features Easy to grow all in one grow kit designed for home grown mushroom from culture to harvest Suitable for multiple varieties of mushrooms including Oysters, Wine Caps, Cerminis, Trumpet, Chestnuts, and Pioppinos. Sterile mix of coco coir, aged manure, worm castings,