How to prune variegated sweet flag

Early spring for seasonal cleanup; as needed for dead leaves. Pull or snip individual dead leaves at their base. In spring, cut back significantly damaged or browned growth to a few centimetres above soil or water level. Avoid bulk shearing; selective leaf removal preserves the ornamental form.

Annually in spring, with light tidying as needed. Variegated Sweet Flag needs very little pruning. Simply remove dead, browned, or frost-damaged leaves at the base as they appear. In early spring, clear away any tatty overwinter foliage before new cream-and-green leaves emerge. Take care not to shear the plant heavily — the variegated markings are most vibrant on new, healthy growth.

Pull or snip individual dead leaves at their base. In spring, cut back significantly damaged or browned growth to a few centimetres above soil or water level. Avoid bulk shearing; selective leaf removal preserves the ornamental form.