How to prune sneezeweed

Late spring (late May–early June) for the Chelsea Chop; after frost for cutting back. Cut stems back by one-half in late May to early June to prevent flopping and stimulate branching. Deadhead spent flower clusters during the season. After the first hard frost, cut all stems down to 2–3 inches above the crown.

Annually — one spring chop, deadhead through summer, cut back in autumn. Sneezeweed grows tall and can become floppy without intervention. Pinch or shear stems back by one-half in late spring (the Chelsea Chop technique) to produce a shorter, bushier plant with more flowers in late summer and autumn. Deadhead spent blooms to extend display. Cut all stems to the ground after frost.

Cut stems back by one-half in late May to early June to prevent flopping and stimulate branching. Deadhead spent flower clusters during the season. After the first hard frost, cut all stems down to 2–3 inches above the crown.