How to prune swamp rose mallow

Late autumn after frost, or early spring before new growth. Cut all stems to 3–6 inches above ground level in late fall or early spring. During summer, deadhead faded flowers by snipping the stem just below the spent bloom to encourage continued flowering.

Annually (hard cutback); deadhead as needed through summer. Swamp Rose Mallow is a hardy herbaceous perennial that dies back to the ground each winter. Cut all stems to within a few inches of the ground in late autumn or early spring before new growth emerges. During the growing season, deadhead spent blooms to extend flowering. No complex shaping is needed.

Cut all stems to 3–6 inches above ground level in late fall or early spring. During summer, deadhead faded flowers by snipping the stem just below the spent bloom to encourage continued flowering.