Cold Stratification
Cold stratification is a seed preparation technique where seeds are exposed to prolonged cold, moist conditions to break dormancy and improve germination rates. This process mimics natural winter conditions that many plant seeds require before sprouting in spring. In cannabis breeding and seed banking, cold stratification is often applied to freshly harvested or stored seeds to synchronize germination timing and increase overall viability. The technique typically involves refrigerating seeds in moist substrate or paper towels for 2–8 weeks before planting. Breeders and seed preservationists commonly use this method when working with genetically diverse or heirloom lines that may have harder seed coats or delayed germination patterns.
Cold Stratification strains
No strains tagged into Cold Stratification yet — they'll appear here as breeders submit lineage records under this family.
Cold stratification is a seed preparation technique where seeds are exposed to prolonged cold, moist conditions to break dormancy and improve germination rates. This process mimics natural winter conditions that many plant seeds require before sprouting in spring. In cannabis breeding and seed banking, cold stratification is often applied to freshly harvested or stored seeds to synchronize germination timing and increase overall viability. The technique typically involves refrigerating seeds in moist substrate or paper towels for 2–8 weeks before planting. Breeders and seed preservationists commonly use this method when working with genetically diverse or heirloom lines that may have harder seed coats or delayed germination patterns.
Breeders employ cold stratification to improve seed vigor in breeding programs, particularly when stabilizing new F1 hybrids or preserving landrace genetics. This technique is also useful for reducing germination variability across large seed batches, enabling more consistent phenotype selection in subsequent generations.
Educational reference · Cultivar metadata only · No medical claims