My boxwood leaves have turned orange for the first time ever and I’m not sure why. Ryan made mention of some of his trees turning a different color this year and may be attributed to the smoke from the fires. I am in the California central valley and the smoke sat in the valley for weeks with very little light. With all that, what does everyone think? defoliate or leave them on and see if the new push will cause them to drop?
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Picture? Does it look like this?
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Hi David, definitely leave them on. It may be simply winter injury as Josh mentions in which case spring growth will be healthy. If you have bare patches it may be box blight which is caused by fungi. A copper based treatment is used by the horticultural trade to treat it. How about a photo, it may help us to help you further…
yes, but no dead leaves.
no disease, I think it may be from the few days of frost.
thanks
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