Our pure mushroom grain spawn comes fully colonized and ready to expand. We grow the grain spawn in 6-lb filter patch bags. This oyster spawn is known for large fruiting bodies, fast spawn run, and a beautiful blue color that is vibrant when young. It fruits at a wide range of temperatures and will fruit 3 or more flushes over the course of several months. Great to grow in alder chips, straw, supplemented sawdust, toilet paper, and many other substrates.
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