How to prune dahlia 'american dawn'

Pinch in late spring; deadhead throughout summer and autumn. Pinch out the central growing tip above the third set of leaves shortly after planting out. Deadhead spent flower heads by cutting back to the nearest healthy bud or lateral shoot. After frost, cut stems to near ground level before lifting or mulching tubers.

Pinch once; deadhead every 7–10 days. Dahlia 'American Dawn' benefits from pinching after planting to stimulate bushier growth and more flowering stems. Deadhead spent blooms consistently through summer and autumn to maintain vigour and prevent the plant going to seed. Cut all top growth back to ground level after the first blackening frost.

Pinch out the central growing tip above the third set of leaves shortly after planting out. Deadhead spent flower heads by cutting back to the nearest healthy bud or lateral shoot. After frost, cut stems to near ground level before lifting or mulching tubers.