Cold Stratification

A cold treatment that mimics winter to break seed dormancy. Required for many deciduous trees and perennials.
Cold stratification is essential for many temperate plant seeds to break dormancy. 1. Moisten sand or vermiculite (not soaking wet) 2. Mix seeds into the medium 3. Place in sealed plastic bag or container 4. Store in refrigerator at 2-4┬░C (35-40┬░F) 5. Check weekly for moisture and mold 6. Duration varies by species: 30-120 days 7. Sow immediately after stratification period ends

Applies to