How to prune dahlia 'bishop of llandaff'

Pinch tips in late spring after planting out; deadhead through summer and autumn. Pinch the main stem above the third leaf pair when plants reach 12 inches. Remove spent blooms by cutting back to the next set of leaves or a side shoot to keep new buds coming.

Deadhead every 3–5 days during bloom season; pinch once after planting out. Dahlia 'Bishop of Llandaff' is a peony-flowered type that blooms prolifically with regular deadheading. Pinch growing tips at 12 inches to encourage bushy growth and more flower stems. Unlike dinnerplate types, disbudding is not needed — let all buds develop for their characteristic abundant single-to-semi-double flowers.

Pinch the main stem above the third leaf pair when plants reach 12 inches. Remove spent blooms by cutting back to the next set of leaves or a side shoot to keep new buds coming.