I have a 20 year old camellia that has been healthy and flowering. Recently, some of the leaves are totally brown, not yellow. Buds are not yet open. I have not fertilized it and not over watered. What do you think? I have heard of blight on camellias but I thought that was only on the blooms.
Certified GKH Gardening Expert
It sounds as though there might be some sun scald involved. Perhaps you've had hotter temperatures this summer? Another possibility is that the soil has become compacted over the years; you may need to do some soil amending. Your bush may also may be needing some fertilizing. The American Camellia Society recommends a low nitrogen fertilizer in early May and the end of July. Your local garden center can guide you with this.
Finally, your camellia may have some kind of insect infestation. I'm sending you a link to this article: https://www.gardeningknowhow.com/plant-problems/pests/insects/control-plant-scale.htm because it contains excellent information on how to treat plants with scale problems.