28+ Hydrangea Leaves Turning Yellow With Brown Spots. This is likely the case if the leaves on top of your hydrangea and on the sides would receive the most sun or the ones turning yellow with brown tips. Hydrangea leaves turning yellow is a common problem.
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This article reviews the most common problems and how to treat them. The other issue could be a phosphorus shortage in soil, especially if leaves. Septoria leaf spot usually appears on the lower leaves after the first fruit sets.
Yet, you may see black spots on your hydrangea's leaves.
When it's unusually rainy (or if you're overwatering), hydrangeas' leaves develop unsightly, black spots. Fungus needs a dark, moist area. Nitrogen deficiency of a hydrangea is usually expressed by established leaves turning yellow, and it happens when the ph balance of the soil is too high. Dipladenia leaves turning brown google search.