How to prune astilbe 'fanal'

Late autumn or early spring for cutting back; deadhead or leave seedheads through winter. Cut all stems and foliage to ground level with secateurs. If leaving seedheads for winter texture, cut them in late winter before new shoots appear.

Once annually; seedhead timing is optional aesthetic choice. Astilbe 'Fanal' benefits from deadheading once its deep red plumes fade, though many gardeners leave the dried seedheads for winter interest. Cut all stems to the ground in late autumn or early spring before new growth begins. Dividing congested clumps every 3–4 years rejuvenates flowering but is not pruning per se.

Cut all stems and foliage to ground level with secateurs. If leaving seedheads for winter texture, cut them in late winter before new shoots appear.