Water moderately during the growing season (spring to autumn) when the soil begins to dry out. Reduce watering significantly as the foliage yellows and dies back in late autumn, entering dormancy.

Avoid waterlogging, which can lead to bulb rot.

Pruning is generally not required for Colchicum alpinum. Allow the foliage to die back naturally after flowering, as this nourishes the bulb for the following year's bloom.

Remove any dead or damaged leaves only after they have completely withered.

Propagate by dividing established corms in late summer when they are dormant, just before the flowering season. Corms can also be grown from seed, though this is a slower method and may take several years to produce flowering plants.

Repotting is usually only necessary when corms become overcrowded and flowering diminishes, typically every 3-5 years. Repot in late summer after the foliage has died back.

Use a well-draining potting mix and plant corms at a depth of about 10-15 cm.