How to prune showy japanese lily

Deadhead as flowers fade (late summer to early autumn); cut to ground after foliage yellows. Clip off spent blooms individually, leaving the stem and leaves fully in place. Once foliage is completely yellow and dead, cut the stem at ground level with clean secateurs.

Annually — deadhead each spent flower, then one autumn tidy-up. Showy Japanese lily benefits from deadheading spent flowers in late summer to prevent energy-sapping seed production. The stem and all leaves must remain green and intact until they die back naturally in autumn. Cut stems to ground level after senescence. This bulb needs its foliage time — removing it early weakens next year's bloom.

Clip off spent blooms individually, leaving the stem and leaves fully in place. Once foliage is completely yellow and dead, cut the stem at ground level with clean secateurs.