Perennials: cutting back

Perennials are not demanding plants, but trimming them after flowering finishes in autumn helps improve their appearance and flowering. However, you can leave some stems over winter to provide homes and food for wildlife, and then trim back in spring.

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Cutting back perennials. Credit: RHS Advisory.

Quick facts

Suitable for: All but a few perennials and ornamental grasses
Timing: Autumn until spring
Difficulty: Easy

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