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Old Rhododendron Decline: Prune Dead, Water Deeply

Random branch death on a 25-year-old rhododendron after extreme heat/drought is likely drought stress, not disease. The plant never thrived, possibly due to competition from euonymus (now pruned).

Action

Deep soak now; repeat weekly if dry.
Prune dead branches: scratch bark to find green, cut 1–2 inches into live wood.
Dispose of prunings.
Mulch 2–3 inches (not against trunk).
Monitor; if more dies, consider root rot or borer.

Recovery possible with consistent moisture.

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