Why will I love it?
With its deep purple triangular-shaped foliage - reminiscent of a butterfly's wings - the Oxalis triangularis stands out from the crowd, adding variety to the usual green hues of our houseplants.
Light or shade?
Bright, indirect light.
Where should I put it?
A windowsill that faces east or west, avoiding intense south-facing sun that could scorch the leaves.
How do I keep it alive?
This plant prefers to be kept moist but not wet. Use well-draining soil, and water the plant thoroughly when the top inch of soil feels dry, but be sure not to let it sit in water. Feed the plant every two to three weeks and keep the room temperature between 15-24C.
Related: Houseplant of the week: jewel orchid
Did you know .
The triangular leaves of the plant close at night and open again in the morning. The leaves have an acidic taste due to the oxalic acid they contain and can, like the flowers, be used in small quantities for garnishing salads to add a tart, citrusy flavour. However, be warned, it is mildly toxic to humans and cats and dogs when a significant amount is ingested. The plant is often associated with good luck and is considered a symbol of the holy trinity in some cultures.