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Rose of Sharon (Althea) Uneven Leaf Out: Need Professional Diagnosis

Symptoms

Four 7-year-old shrubs: two leafing, two bare with only top growth. Fertilized and lightly pruned in spring.

Possible Causes

Soil contamination (localized)
Root disease (Phytophthora, Armillaria)
Insect borers
Herbicide drift

Why Expert Help Is Required

Multiple shrubs affected differently in same bed points to site-specific issue. Soil testing and root inspection needed.

Recommended

Hire certified arborist or tree care company for soil sampling and diagnosis.

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