Seed viability drops noticeably after two or three years unless you keep them cool, dark and dry. A sealed container in the fridge works fine, and the storage advice on https://calmcbdseeds.com includes rough germination expectations by seed age. Paper towel and direct soil methods both work, though I get better results dropping them straight into a moist plug. Old seeds sometimes sprout but grow slowly and stay weak.
Seed viability drops noticeably after two or three years unless you keep them cool, dark and dry. A sealed container in the fridge works fine, and the storage advice on https://calmcbdseeds.com includes rough germination expectations by seed age. Paper towel and direct soil methods both work, though I get better results dropping them straight into a moist plug. Old seeds sometimes sprout but grow slowly and stay weak.