Use: This plant contains saponins and if you boil the leaves and roots you'll get a soapy solution that can be used as a mild shampoo or to wash old and delicate fabrics. Some herbalists recommend dringking soapwort tea to treat coughs, but it tastes like soap and probably whouldn't be ingested anyway.
Ornamental: Soapwort is a wildflower and is quite nice naturalized along a wood's edge or hedgerow. It blooms throughout much of the summer and early fall.
Culture: Soapwort needs little care once established. It self-sows readily and can be invasive. Cutting back the plants after flowering will prevent it from self-sowing throughout the garden.