The seeds require cold and wet stratification, as well as light, in order to germinate.

The seeds may be dormant for a period of time and may require stratification to germinate.

Seed of many woody plants and alpines, particularly, requires stratification, that is a cold period.

When stored for a year or more, seed may require stratification for only 30 to 60 days.

The seeds of Japanese maple and similar species require stratification in order to germinate.

Because germination requires stratification, the seed is best sown early in the year.

Some seed requires stratification - that is, cold treatment or storage - before it will germinate.

Seeds require stratification and take one or two years to germinate.

Propagation is from seed which requires 12 weeks cold stratification.

The seeds do not require stratification and are dispersed by berry-feeding birds.