Soapwort is a favourite perennial for cool-alpine and rock gardens. This semi-evergreen blooms from May to August with five-petaled pink flowers joined at the base to form a nectar tube that is highly attractive to bees. Provide good drainage. The roots really can be used to make soap. Rock Soapwort looks marvelous in containers, but best in situations when it can trail and seed itself.
Sturdy and easy to grow. Stems are thicker, stronger, taller, and easier to manage than those of annual gypsophila, an otherwise similar flower. 3/4 to 1″ dusty pink blooms float above gray-blue, waxy foliage. Branching plant habit. Also known as cow soapwort.