PLANTS VALUABLE FOR USE IN ROCK GARDENS, IN JAPANESE GARDENS, AND IN WALL CREVICES : Page 338
Prostrate Cotoneaster Rhodora
Deutzia gracilis Viburnum, opulus nanum
Slender Deutzia Dwarf Bush Cranberry
C. Perennials. This group of plants forms one of the mostinteresting phases of rock garden development. Most of theseperennials are either heavy in their texture of foliage, or very dwarf intheir habit of growth. They will adapt themselves to cultivation in thecongested spaces so often found in garden developments of this kind.
Achillea boule de neige *Arabis alpina nana compacta