The silky wormwood forms a low mound of mink-fur-soft much dissected silver leaves. We grow a patch of it at the edge of a path in our dry climate garden. Whilst it looks delicate it is in fact easy to grow as long as it is given full sun and doesn’t sit in sodden soil for long periods. Silky Wormwood is equally happy in the rock garden as in the border. 20cm x 30cm.