Keep the soil consistently moist, especially during the growing season. Allow the top 2-3 cm of soil to dry out between waterings to prevent waterlogged conditions, which can lead to root rot.

Reduce watering in winter when the plant is dormant.

Remove spent flower stalks after blooming to prevent seed formation and encourage energy redirection to the bulb. Trim back any yellowing or dead foliage in late autumn or early spring.

Wear gloves as the sap can be irritating.

Divide established clumps in early spring or autumn. Carefully separate the bulbs, ensuring each division has at least one bud. Replant immediately at the same depth as they were previously growing.

Seeds can be sown fresh in autumn.

Repot container-grown plants every 2-3 years, or when they become root-bound. This is best done in early spring before active growth begins.

Use a well-draining potting mix and a slightly larger pot to accommodate the root system.