Seed Longevity

Seed longevity refers to the viability span of cannabis seeds under storage conditions—how long genetic material remains capable of germination. Factors including seed coat integrity, moisture content, temperature stability, and genetic background all influence longevity trajectories. Breeders and seed banks track viability rates across time to establish realistic storage protocols and germplasm preservation strategies. Seeds stored in cool, dry, dark conditions typically maintain higher viability for extended periods than those exposed to temperature fluctuations or humidity. Understanding longevity helps distinguish between fresh seed stock and aged inventory, informing decisions about seed banking, breeding programs, and genetic archival.

Breeders working with heirloom or rare genetics prioritize longevity testing to ensure endangered or limited-run lineages remain viable for future crosses. Seed banks and breeding repositories rely on longevity data to design preservation protocols that protect genetic diversity across decades.