Oxalis Care
Oxalis triangularis (False Shamrock)
Overview
- Distinctive purple, butterfly-shaped leaves
- Foliage opens with light and folds closed at night
- Easy-care tuberous perennial
- Adds vivid color and movement to indoor collections
Oxalis triangularis, commonly called False Shamrock, is prized for its dramatic, triangular leaves in deep purple hues, each leaflet folding down like butterfly wings at dusk. Its delicate white or light pink blooms rise above the foliage, adding a gentle contrast. At BoDurtha’s, we love this plant for its sculptural color and dynamic daily movements.
Origins
Native to Brazil, this species grows from small tubers in partial shade, often carpeting forest floors with its bold purple foliage.
Light Requirements
Bright, indirect light keeps foliage vibrant.
- Too much direct sun may scorch delicate leaves
- Low light results in leggy, sparse growth
- Best near an east-facing window or bright northern exposure
Watering
Water when the top inch of soil feels dry.
- Overwatering can rot tubers—ensure soil is never soggy
- Drooping leaves may indicate underwatering or dormancy initiation
- Allow plant to go dormant if it begins to decline; reduce watering and resume when new growth appears
Soil & Potting
Use a light, well-draining potting mix.
- Aroid Mix is suitable, though standard indoor potting mix with perlite works as well
- Pots must have drainage holes to prevent tuber rot
- Shallow pots are ideal due to the plant’s small root system
Fertilizer
Feed monthly during the active growing season (spring and summer) with a balanced liquid fertilizer, diluted to half strength.
- Do not fertilize during dormancy
Recommended Growth Style: Freeform
Oxalis triangularis is best grown freeform to display its foliage movement and flowering habit.
- No staking or vertical support required
- Looks beautiful clustered in groups or as a colorful accent among green foliage plants
Final Notes
Oxalis triangularis is a graceful, low-maintenance plant that adds movement and vivid color to any space. Its daily opening and closing provide a gentle rhythm to your environment. At BoDurtha’s, we celebrate its ephemeral charm and encourage letting it rest during dormancy to keep it thriving for years to come.