Spring is good. Black fungus is a medium-temperature fungus, with a wide range of adaptation to temperature. Black fungus mycelium can grow between 5 ℃ and 35 ℃, but 22 ℃ to 28 ℃ is suitable. Below 15℃ or above 30℃, the growth of mycelium will be inhibited. Nature's temperature often appear high or low temperature, and live in the ear wood inside the mycelium has a strong adaptability to high temperature or cold, so through the harsh winter and summer after the death. However, low and high temperatures have different effects on the mycelium. Low temperature, mycelium growth and development is slow, but robust, vigorous vitality; high temperature, mycelium growth and development speed, but easy to aging, and vitality of black fungus entity growth of the appropriate temperature, to 18 ℃ ~ 25 ℃ is appropriate. The appropriate temperature for stretcher spore germination is 22 ℃ ~ 28 ℃, the temperature is too high or too low are very difficult to produce stretcher spores and germination of mycelium.