How to prune yellow azalea

Immediately after flowering (late spring to early summer). Deadhead spent blooms by snapping off trusses just above new growth buds. For shaping, cut back selected stems to a healthy bud or lateral with sharp, clean secateurs. For renovation, remove one-third of the oldest stems at the base each year over three years.

Deadhead annually; light shaping as needed; renovation over 2–3 years if required. Rhododendron luteum (deciduous azalea) benefits from deadheading after its fragrant yellow flowers fade in spring. Light shaping can be done at the same time. It blooms on previous year's wood, so avoid heavy pruning that removes flowering stems. Overgrown plants can be renovated over two to three years by removing the oldest stems progressively.

Deadhead spent blooms by snapping off trusses just above new growth buds. For shaping, cut back selected stems to a healthy bud or lateral with sharp, clean secateurs. For renovation, remove one-third of the oldest stems at the base each year over three years.