Echinopsis oxygona, the Sea Urchin or Easter Lily Cactus, is a popular clustering globular cactus with a ribbed, urchin-like green body bearing short spines. Native to South America, it is treasured for its spectacular, large, fragrant trumpet-shaped flowers in soft pink to white that open from long tubes, often at night or early morning, and last a day or two. It offsets freely to form clumps and is one of the easiest cacti to bloom, even for beginners. Hardy, drought-tolerant and undemanding, it rewards a sunny windowsill or balcony with a dramatic seasonal flower display.
Specifications
| Family |
Cactaceae |
| Native region |
South America |
| Mature height |
15-25 cm |
| Mature spread |
15-30 cm, clustering |
| Growth rate |
Moderate |
| Foliage |
Leafless; ribbed globular body with short spines |
| Flower colour |
Pink to white |
| Flower season |
Spring to summer |
| Climate zone |
Arid, subtropical |
Care guide
| Sunlight |
Full to bright light; several hours of sun. |
| Watering |
Water when soil dries in summer; dry in winter. |
| Soil / mix |
Gritty, very free-draining cactus mix. |
| Temperature |
Thrives 18-35C; protect from frost. |
| Humidity |
Low humidity preferred. |
| Fertilizer |
Light cactus feed once or twice for blooms. |
| Pruning |
None; remove only damaged tissue. |
| Repotting |
Every 2-3 years; handle with care. |
| Propagation |
Easy by separating offsets, or from seed. |
| Pests & problems |
Mealybugs, scale, spider mites; rot if wet. |
| Toxicity / safety |
Non-toxic, but spines can injure. |
| Difficulty |
Easy |
Uses
<p>A free-flowering ornamental cactus for sunny windowsills, balconies and containers, grown for its large, fragrant trumpet blooms and its easy, clumping, low-maintenance habit.</p>
Growing tips
<p>In India give it bright sun and a gritty mix, water in the warm season and keep it dry over winter; a cool, dry winter rest greatly improves the spring and summer flower display.</p>