Pruning Mature Rhododendron: The 1-in-3 Rule

Shaping a 2m x 2m Unpruned Rhododendron

Mature rhododendron needs containment after garden alterations. Never shaped.

Method

• Remove all old/dead wood first.
• Remove crossing/crowded limbs.
• Never cut half a limb—remove whole branch to its origin.
• New growth emerges from strongest remaining limb.