time to start seeds stratifying

time to start seeds stratifying. wild american black currant, wild raspberry, wild sarsaparilla, and ribes aureum - a bush I think was crandall with huge berries. these soak overnight then go in the fridge with some damp peat moss until april. many perennial seeds need to go through this cold conditioning for a few months before they’ll germinate. for these berry bushes, I’m going to try plug trays so this is enough seed for half a dozen trays of each.