|Zanonia is a clump-forming perennial with upright or decumbent stems and widely elliptic to inversely lance-shaped dark green leaves. Produces white flowers in paired, axillary cymes. In general, Tradescantias are tufted clumping perennials with erect, branching stems and lance-shaped, narrow, green leaves tinged with purple. Blooms are blue, purple, rose-pink or white, with three triangular petals each. Be sure to cut the foliage back in the autumn. Does well even in wet soils and filtered light.