How to prune dahlia 'labyrinth'

Pinch in late spring; deadhead through summer and autumn. Pinch out the central growing tip above the third leaf pair shortly after planting out. Remove spent blooms by cutting back to the nearest bud or leaf axil. For the largest flowers, remove side buds on each stem, leaving only the terminal bud.

Pinch once; deadhead every 7–10 days during bloom. Dahlia 'Labyrinth' is a large, waterlily-type dahlia that benefits from pinching for extra stems and regular deadheading to keep the plant productive. Its large blooms are prized as cut flowers, so frequent cutting serves as deadheading. Cut all growth to ground level after the first hard frost.

Pinch out the central growing tip above the third leaf pair shortly after planting out. Remove spent blooms by cutting back to the nearest bud or leaf axil. For the largest flowers, remove side buds on each stem, leaving only the terminal bud.