Few mushrooms are more satisfying to watch grow as the Blue Oyster Mushroom. It is very forgiving and easy to grow making it the ideal choice for a beginner. The fruits grow rapidly, sometimes doubling in size everyday. The mushroom starts out strikingly blue and turns grey as it matures. Blue Oyster Mushrooms can achieve extremely high yields, up to 200% biological efficiency. Picking older mushrooms will improve the yield, but risks covering your grow room with spores or picking the mushroom past their prime for culinary use. Blue Oyster mushrooms can be used in a variety of dishes, especially soups and pastas. The flavor is unique and delicious.