D. cashmerianum is well suited for the border or for a large rockery; in either case perfect drainage is essential, and this is best attained in rock garden culture.
It flowers annually on the rockery at Kew.
Geum belong to still another group, and are valuable alike on border and rockery.
Well adapted for carpeting the border or rockery.
Many of the little alpines may be brought into the front line planted between suitable pieces of stone, or they may be relegated to a particular spot, and placed on an artificial rockery.
Cordifolia, the foam flower, is very ornamental in border or rockery.