Water thoroughly when the top 2-3 cm of soil feels dry. Avoid overwatering, as this can lead to bulb rot.

Reduce watering significantly once the foliage begins to yellow and die back after flowering, allowing the soil to dry out somewhat during dormancy.

Remove spent flower stalks immediately after blooming to prevent seed formation, which can deplete the bulb's energy. Allow foliage to die back naturally; do not cut it until it has turned yellow and withered completely.

This ensures the bulb replenishes its reserves for the next year's bloom.

Divide overgrown clumps in late summer or early autumn, after the foliage has died back. Carefully separate bulbs, ensuring each has roots and a healthy basal plate.

Replant them promptly at the recommended depth in well-draining soil.

Repot Narcissus obesus every 3-5 years, or when the bulbs appear overcrowded and flowering diminishes. This is best done in late summer or early autumn, using fresh, well-draining potting mix.

Ensure bulbs are planted at the correct depth, with the tip just below the soil surface.