I planted this Euphorbia characias hybrid from South Carolina's John Elsley, expecting it to die like most of my other Euphorbia characias selections. After a summer with several consecutive weeks of 100+ F heat and humidity, it looked good as new...I'm impressed! Our clump has made a compact, deer-resistant, 2' tall x 2' wide upright mound in good growing conditions. The narrow blue recurved-edge leaves take on a purple hue in the winter months and are topped with short stalks of yellow flowers in March/April. Good drainage is the key for all Euphorbia characias forms and hybrids...don't forget to cut them back severely after flowering.