Fairy Flower Seeds Sedum Species Mixed x100 seeds, for your rock garden, Hardy Perennial Many mixed species for the rock garden. When to Sow April-June. Perennial, 2-6 weeks at 15-18oC, Sow seeds in trays & cover lightly with a fine seed compost. Type: Hardy Perennial Height: 10 - 20cm End Use: Rockeries Always use a good quality seed compost. Please note we pack the majority of our seeds by volume so the number of seeds indicated is only an approximation. Seeds are packed into Glassine envelopes or zip-lock bags to keep them fresh. Thanks for looking. Sedum Species Mixed Approx. 100 Seeds, Hardy Perennial, Fairy Flower Seeds