How to prune zinnia 'benary's giant'

Pinch young plants at 15–20 cm tall (late spring/early summer); deadhead throughout the flowering season. For pinching: cut the main stem just above the second or third set of leaves. For deadheading: cut spent blooms back to the nearest side shoot or leaf axil showing a new bud.

Pinch once at the seedling stage; deadhead every 5–7 days through summer and early autumn. Zinnia 'Benary's Giant' produces larger blooms with regular deadheading. Remove spent flower heads promptly throughout summer to divert energy to new buds. Pinching young plants once when 15–20 cm tall delays first bloom but produces more flowering stems and a bushier habit overall. No hard pruning is needed.

For pinching: cut the main stem just above the second or third set of leaves. For deadheading: cut spent blooms back to the nearest side shoot or leaf axil showing a new bud.