Oxalis 'Iron Cross' (Lucky clover)
Oxalis 'Iron Cross' is grown for its distinctive foliage and bright pink, funnel-shaped flowers above distinctive cross-marked leaves, adding colour and texture to pots, borders and summer displays. The leaves open and close with the light, bringing extra movement and charm to containers.
At around 15 cm tall when in flower, oxalis makes a neat, spreading clump that works well as underplanting or ground cover in warm months. It blooms from late spring through summer in bright conditions.
Plant bulbs in spring once the soil starts to warm, in full sun or light shade. Use well-drained soil or compost and avoid waterlogging, especially early in the season while bulbs are starting into growth.
Water after planting and keep lightly moist while in active growth. If the plant goes dormant at any point, reduce watering and allow it to rest, then resume watering when new growth appears.
Ideal for patio pots, edging and rock gardens, oxalis can also be lifted and stored frost-free in colder areas. Bring pots under cover before hard frosts to enjoy the foliage for longer.
| Botanical name | Oxalis tetraphylla 'Iron Cross' (syn. Oxalis deppei 'Iron Cross') |
| Flower colour | Pink |
| Bulb size | 5/+ |
| Established height | 15 cm |
| Established spread | 30 cm |
| Plant spacing | 75+ bulbs per m² |
| Leaf colour | Green |
| Habit | Spreading, clump-forming |
| Life cycle | Perennial |
| Hardiness | Tender |
| Years to establish | 1st year |
| Sunlight | Full sun, Partial shade |
| Position | Exposed or Sheltered |
| Suitable for | Pots, Borders, Cutting garden |
| Soil acidity | Any |
| Soil moisture | Moist but well-drained |
| Soil type | Chalk, Clay, Loam, Sand |
| RHS Award (AGM) | No |
| Growing skill | Easy to grow |
| Pollinator-friendly | Yes |
| Deer resistant | No |
Planting and Flowering Calendar
Key Features
Packed in paper
Packed peat-free
Great for Shade
Attracts wildlife
Low maintenance
Perfect for pots

