How to prune spearmint 'kentucky colonel'

Throughout the growing season; cut back before flower buds open, typically late spring through summer. Cut all stems back to 2–3 inches above the ground using scissors or shears as soon as flower buds begin to form. This triggers a flush of fresh leafy growth. In autumn, cut the whole plant back to ground level; it will regrow from the roots in spring.

Two to three times per growing season; hard cutback in autumn. Spearmint 'Kentucky Colonel' is a vigorous spreading mint that benefits from regular cutting to keep it productive and to delay flowering. Once it flowers, leaves lose some flavor. Cut stems back hard to the ground two to three times during the growing season to encourage fresh, flavorful growth.

Cut all stems back to 2–3 inches above the ground using scissors or shears as soon as flower buds begin to form. This triggers a flush of fresh leafy growth. In autumn, cut the whole plant back to ground level; it will regrow from the roots in spring.