Sedum Species, Kamschatca Stonecrop, Russian Stonecrop Tweet Details Type: alpines and rock gardens, perennials, cactus and succulents Scientific Name: Phedimus kamtschaticus subsp. ellacombianum Height: 12-18 in. (30-45 cm) Conditions: zone 4-9, full sun, sun to partial shade Category: Alpines & Rock Gardens