Description: Uniquely shaped foliage, which has a distinct purple blotch in the center, and delicate deep rose-colored flowers borne in umbels; often grown in pots
Habit: Grows to 12 inches high; forming a neat mound; propagate by divisions in early fall
Culture: Prefers full sun to light shade and well-drained garden loam; goes dormant in the winter
Hardiness: USDA Zones 7 through 11
Origin: Mexico, South America
The Iron Cross Oxalis is a member of a genus that contains over 850 species from all parts of the world, but primarily from South Africa and South America. This species was introduced from Mexico and South America in 1823 and was popular during the Victorian period in America and Great Britain. In 1890, American nurseryman Peter Henderson considered this plant very effective in the herbaceous border or rock garden. Other common names include Lucky Shamrock, Good Luck Plant, and Mexican Wood Sorrel. While this showy species is often sold on St. Patrick’s Day, the true shamrock of Irish legend is the common white clover that has become a lawn weed today.