holly bush leaves turning brown and dropping off while two more near it are fine

Question

We have one holly bush that its leaves are turning brown and dropping off while others near it are doing fine I am sending a few photos including one of the good bushes – any thoughts?

Answer 1

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Inspect the leaves of the Holly for any signs of pests or disease.

Have you had heavy rains or dry conditions?

Mulching with 2 to 3 inches of a hardwood mulch can help with moisture and temperature control.

Do make sure the mulch is not directly touching the trunk of the Holly.

Clean up any dead plant material and dispose of it, to avoid spreading any disease.
The article below has an overview of the most common issues with Holly plants.

https://www.gardeningknowhow.com/ornamental/shrubs/holly/diseases-of-holly-bushes-pests-and-diseases-damaging-holly-bushes.htm