How to prune iris 'benton susan'

After flowering for stalks; autumn for foliage trim. Cut spent flower stems to the base once all buds on the stalk have finished. In autumn, trim the leaf fans to about 6 inches with clean shears to reduce disease risk and tidy the clump.

Annually (post-bloom deadheading + autumn tidy). Iris 'Benton Susan' benefits from pruning to maintain vigor and appearance. Deadhead spent blooms promptly. After flowering, cut flower stalks to the base. In autumn, trim fan-shaped leaves to 6 inches to prevent rot and disease over winter. Remove any brown or damaged foliage as it appears throughout the season.

Cut spent flower stems to the base once all buds on the stalk have finished. In autumn, trim the leaf fans to about 6 inches with clean shears to reduce disease risk and tidy the clump.