It prefers a place in full sun, with light, well-drained soil. It can grow on very rocky ground. It dislikes wet conditions so a gritty free-draining compost is a must. It can be grown outside in the garden in very dry spots, but is often best to be grown in pots of free-draining compost. If you are going to plant it in the garden, surround plants with a thick layer of grit to prevent waterlogging around the crown of the plant.
Propagate purple saxifrage by sowing seeds in autumn in containers in an open frame. You can also propagate it by division of plants in spring or by detaching individual rosettes and root as cuttings in late spring or early summer.