preparing seed for planting coral bells
What is meant by "six-week cold period prior to planting"?
Many plants produce seed that requires special preparation. Cold, moist stratification, CMS is a common one. Seed is mixed with a small amount of damp sand or potting mix, placed in a plastic bag and stored in the refrigerator for the designated period. Or seed can be sown outdoors in mid-winter to mimic natural CMS. The cold, moist environment followed by seed sowing at room temperature is a signal to seed to germinate.