Yellow Azalea Leaves in Winter: Normal or Problem?

Seasonal Leaf Drop Is Typical

Many “evergreen” azaleas are actually semi‑evergreen. Older spring‑produced leaves turn yellow and drop in winter, especially on large‑leaf Indica types. Kurume varieties hold foliage better.

As long as the tips of branches show green leaves, the plant is healthy and will refoliate in spring. No action needed.