How to prune sieber's crocus

Remove dead foliage once fully yellowed, around late spring; deadhead if needed just after flowering. Pull or cut away dead, brown leaves cleanly at ground level. Snip spent flower heads at their base if preventing seed spread. Never disturb or cut green leaves.

Rarely — once per season. Sieber's Crocus (Crocus sieberi) needs essentially no pruning. Allow its narrow leaves to die back naturally after the early-spring flowers fade — the foliage feeds the corm for next year's bloom. Only remove leaves once fully yellow and papery. Deadhead if you wish to limit self-seeding, but this species is generally well-behaved in the garden.

Pull or cut away dead, brown leaves cleanly at ground level. Snip spent flower heads at their base if preventing seed spread. Never disturb or cut green leaves.