- Natural germination of common persimmon usually occurs in April or May, but 2- to 3-year delays have been observed. The main cause of the delay is a seed covering that causes a major decrease in water absorption. Seed dormancy also needs to be broken by stratification in sand or peat for 60 to 90 days at 3 to 10 °C. Persimmon is hard to artifically germinate.
