Without cooling, count the months when both day and night stay inside a species' fruiting band: 18 to 26 degrees for the common oysters, 14 to 18 for button, 30 to 35 for milky, 28 to 32 for paddy straw, 15 to 20 for shiitake.
Then check DMR's regional calendar. Plains: oyster September to May, milky February to April and July to September, paddy straw July to September, button November to February. Mid-hills: shiitake October to February, button September to March, oyster all year. Coast: oyster, paddy straw and milky in natural conditions all year.

