How to prune siebold's magnolia

After flowering (summer, once blooms have dropped). Remove dead or crossing branches back to a healthy lateral or main stem. Light shaping can reduce size; do not remove more than one-quarter of the canopy at once. Clean tools between cuts to limit disease transmission.

Annually or as needed after flowering. Magnolia sieboldii is a spreading, multi-stemmed deciduous shrub or small tree that blooms on current season's growth — unusual for magnolias. Prune lightly after flowering to tidy shape and remove dead wood. It is more tolerant of pruning than many magnolias but still heals slowly; keep cuts minimal.

Remove dead or crossing branches back to a healthy lateral or main stem. Light shaping can reduce size; do not remove more than one-quarter of the canopy at once. Clean tools between cuts to limit disease transmission.