Oxalis triangularis
Oxalis triangularis
Known for its mesmerizing deep purple, trifoliate leaves that resemble butterfly wings, the Oxalis triangularis is a photophilic wonder. Its foliage performs a daily dance, opening wide in the light and folding closed at night. This perennial plant grows from small bulbs and produces clusters of dainty, bell-shaped flowers in shades of pale pink or white, creating a striking contrast against the dark, moody foliage.
Light
Bright Indirect
Water
Moderate
Difficulty
Easy
Humidity
Moderate
Pet Warning
Contains calcium oxalates which are toxic to cats, dogs, and horses. Ingestion can lead to drooling, vomiting, and in severe cases, kidney failure.
Care Guide
Watering and Feeding
Water your Oxalis when the top inch of soil feels dry. During its active growth phase, keep the soil consistently moist but never soggy. Reduce watering significantly when the plant enters dormancy. Apply a diluted balanced fertilizer once or twice a month during spring and summer.
Lighting and Temperature
Place in a spot with bright, indirect sunlight. Too little light will cause the stems to become leggy and the leaf color to fade. Maintain temperatures between 60-75°F (15-24°C).
Dormancy Period
Unlike many houseplants, Oxalis triangularis may go dormant once or twice a year. If leaves begin to yellow and die back, stop watering and move the pot to a cool, dark place for 2-4 weeks. Once new growth appears, resume normal care.
Common Issues
- Yellowing leaves: Often a sign of overwatering or entering dormancy.
- Leggy stems: Indicates the plant needs more light.
In-Depth Care & Growth
Feeding & Soil
Fertilizer
Balanced liquid fertilizer (10-10-10)
Soil
Light, well-draining potting soil with perlite or sand.
Physical Attributes
Mature Size
6 to 12 inches
Growth Rate
Fast
Propagation
Division of the tuberous bulbs during the dormant or early spring phase.