This species of Tiarella. Or foam flower, a native of the eastern United States, makes a soft, fresh-looking ground-cover for an airy shrub bed where the shade is light. It is a rampant evergreen perennial, carpeting the earth with pale green, hairy, lobed like maple , which turn coppery in autumn. The tiny white grow in fluffy panicles about 9 inches (23 cm) tall and bloom in masses in late spring.
Tiarclla cordifolia likes much the same conditions as another ground-covering member of the saxifrage family, London Pride, that is, a cool place, well-drained soil with some humus, and a little shade. Put in the plants 12 inches (30 cm) apart and they will send out underground runners from which new leaves will shoot to fill in the carpet.
Another somewhat similar saxifrage can claim a place as good evergreen ground-cover,sanguinea. Or coral bells, with panicles of red, pink or white flowers in early summer and handsome marbled leaves. This plant forms clumps rather than a solid carpet, and the tend to lift out of the ground. If this happens, the clumps have to be lifted and replanted; as a labour saver, T. cordifolia is a better choice.