How to prune rhododendron 'catawbiense boursault'

Immediately after flowering (late spring to early summer). Snap off faded flower trusses at the base by hand. For shaping, cut back to a healthy growth node or side bud just below the spent truss. Avoid cutting into thick, leafless old wood unless rejuvenating.

Annually for deadheading; light shaping every few years as needed. Rhododendron 'Catawbiense Boursault' needs minimal pruning. Deadhead spent flower trusses right after bloom by snapping them off carefully to redirect energy into next year's buds. Remove dead or damaged branches any time. Only prune for shape immediately after flowering — cutting into old wood risks losing the following season's blooms.

Snap off faded flower trusses at the base by hand. For shaping, cut back to a healthy growth node or side bud just below the spent truss. Avoid cutting into thick, leafless old wood unless rejuvenating.