Use: Rock soapwort adds interest to edgings, rock gardens, walls, or perennial borders. Rock soapwort forms a mound that can encroach on other plants just by growing over them. Rock soapwort supplies good cut flowers.
Culture: Rock soapwort will not survive wet soils during winter. Cut back severely after flowering to keep the plant compact. keep the plant reasonable moist and add a balanced fertilizer occasionally.