Oxalis triangularis, native to Brazil, is celebrated for its striking purple, triangular leaves that fold down at night, earning it the name “purple shamrock.” This ornamental plant prefers bright, indirect light and well-draining soil, thriving in environments that mimic its tropical origins with high humidity and moderate temperatures. It requires consistent moisture, but overwatering must be avoided to prevent root rot. While it tolerates indoor environments well, it should be shielded from intense direct sunlight. Noted for its visual appeal rather than air-purifying capabilities, it is generally safe and non-toxic to both humans and animals, making it a favored choice for indoor gardeners. Mature Size: 6-12″ x 6-12″ after 2 years. Shade, Morning Sun Afternoon Shade.