City Trees

September/October 2022

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Page 39 of 39

Waxy foliage of Compton oak. 40 CityTREES Q&A with Dave Muffly Transplanting or pruning considerations for Compton oak? It's easier to transplant than many other oaks, if best practices are followed. If it has good growth form, it should need minimal pruning. What is one disease challenge Compton oak handles well in your ecoregion? In coastal California, where the humidity is enhanced by proximity to the ocean, oaks can get terrible powdery mildew. Compton oak has waxy foliage, which tends to be more resistant to powdery mildew, so it's been standing up well to this fungal disease. In addition to waxy foliage, what is a notable orna- mental trait of Compton oak? Where overcup oak will shed its leaves in October, the good upright forms of Compton oak continue to hold leaves into November and even December, while turning red, yellow, orange, and purple.

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