How to prune mountain mint

Early spring (annual cutback); pinch young growth in late spring; shear post-bloom in late summer. Pinch stem tips when plants reach 6–8 inches in late spring to encourage bushiness. After blooming ends, shear the whole plant back by about one-third. Each early spring, cut all stems to 2–4 inches above the ground before new growth begins.

Annually plus 1–2 in-season trims — spring pinch and post-bloom shear. Mountain Mint (Pycnanthemum virginianum) is an herb that responds well to regular pruning. Pinch new shoots when 6–8 inches tall to encourage branching and a fuller clump. Shear back by one-third after flowering to tidy the plant and promote fresh growth. Cut to 2–4 inches in early spring each year.

Pinch stem tips when plants reach 6–8 inches in late spring to encourage bushiness. After blooming ends, shear the whole plant back by about one-third. Each early spring, cut all stems to 2–4 inches above the ground before new growth begins.