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Seed Stratification and Germination: Summer Field Notes

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Field note · June 2026

narrow leaved echinacea, a native species

Oak Summit Nursery · Southern Manitoba

narrow leaved echinacea, a native species. growing in the greenhouse, the seeds were cold stratified in a fridge through feb and march then planted into these pots in early april - about two months ago. they're at a good size now to transplant into their own pots. this is a good demonstration of cold stratification and just time to get perennial flowers going from seed, the approach where you just plant in early spring into pots and water for a couple of months is a good way to let the cold spring nights finish off the cold conditioning the seeds need to germinate. worth noting that these are in part shade and watered daily, because a greenhouse on a sunny hot day can be an oven.