Shiitake mushroom is a delicious and healthy mushroom native to the Far East. However, they are now found throughout the world. Shiitake mushroom (Lentinula edodes) is esteemed for both its health-supporting properties and its culinary value. Our Shiitake kits are super-boosted to give the most prolific harvests. Shiitake mushrooms can be harvested at 2-week intervals for up to 4 months. A 10–30 °C environment is desirable. This variety of shiitake mushroom can sustain the freezing Alberta winter and potentially fruiting for years when additional nutrition for mushroom mycelium is provided. Step-by-step guide on how to use your Mushroom Grow Kits 1.