About Oxalis
Oxalis belongs to the wood-sorrel family and occurs across temperate and tropical regions. Annuals and perennials may have fibrous roots, bulbs or creeping rhizomes.
Types of Oxalis
- Clumping
- O. triangularis; green or purple triangular leaflets
- Low, spreading
- O. acetosella; green, heart-shaped leaflets
Growing Oxalis
General guidance for this genus. Individual species and cultivars can need different conditions.
- Position
- O. triangularis: cool room or outdoor partial shade. O. acetosella: dappled woodland shade.
- Water
- Potted O. triangularis: growing → lightly moist; dormant → barely moist.
- Winter
- Potted O. triangularis: frost-free. O. acetosella: hardy in most UK gardens.
- Potting
- O. triangularis: loam : (leaf mould or soil-less compost) : grit = 1:1:1.