Ultimate Moses in the Cradle Plant Care Guide 1 Plants 🌵 Moses in the Cradle (Tradescantia spathacea), also known as the oyste r plant, is an attractive plant beloved for its structural and upright leaves. Combine the attractive form with eye-catching green and purple colors and it’s no wonder why these plants are popular. Moses in the Cradle grows best in warm climates, so it’s best kept as a houseplant in most areas. Give your Tradescantia the right care to see it grow and flourish with this complete guide.