Purple heart (Tradescantia pallida) is aptly named because its iconic purple stems grow beautiful blooms that range from violet to pink. However, despite its unique blooms, many gardeners choose this plant for its foliage, which is particularly vibrant. Both the stems and upper surfaces of the leaves appear to be deep royal purple, but may also contain lighter shades of turquoise-gray that become darker as the foliage grows older. A plant will bloom with three-petaled pink flowers in small clusters throughout the warm season.