Oxalis triangularis (Purple Wood Sorrel)

Given how delicate this plant appears, you will be surprised at just how unbelievably hardy and resilient it is. Spreading by the replication of underground rhizomes, this plant will easily produce more foliage and flowers year after year if given the space. Shamrock-shaped leaves are dark purple with slight accents of purple-pink, and the tiny white flowers emerge in abundance and contrast beautifully against their dark backdrop. *