There isn’t a lot of difference between this and the Beth Chatto form of Sedum ruprechtii. Both are good plants; both have creamy white flowers although this plant seems more white; both have glaucous foliage with this having a dusky pink overlay. You don’t need both unless like me you want to grow everything. A tough and drought tolerant plant with good year round foliage and cauliflower heads of flowers carried on upright stems during autumn. 40cm x 40cm. Sun.