Tradescantia, including Rhoeo discolor and Rhoeo spathacea, is a plant of many names. Depending on where you live, you may call this plant moses-in-the-cradle, moses-in-a-basket, boat lily and oyster plant. Whatever you call it, Rhoeo makes an excellent and fast growing ground cover in the garden. Rhoeos also enjoy partial shade to full shade. Rhoeos are normally grown due to the fact that they are very drought tolerant.