Oxalis regnellii (green) / Oxalis triangularis (purple)

Shamrock Plants (Oxalis) are characterized by clover-like leaves and dainty white blooms. This South African native plant is much more than just a St. Patrick's Day staple. The white flowers sweep gracefully from their stems atop the unique, triangular foliage year round, making Oxalis Regnellii / triangularis a stand-out feature on windowsills, along decks, in pots, and around porch edgings.