I have rusty looking leaves at the base of a mature oakleaf hydrangia. What...

Asked June 5, 2013, 7:41 PM EDT

I have rusty looking leaves at the base of a mature oakleaf hydrangia. What is causing it and how can I treat it. This plant has been healthy and disease-free for at least 13 years.

Montgomery County Maryland shrubs rust

2 Responses

A good guess is that your hydrangea has rust. Sanitation is always important with any disease. Any leaves that fall should be cleaned up. You could remove the affected leaves and/or try a sulphur spray. If you could send good digital photos we could be more sure of the diagnosis. vw

Thanks for your quick response. I will try to send a photo to give you a better look at the problem. It is not widespread at this point and I do wish to halt its spread because I have younger oakleafs in close proximity.. Thanks again.

Theoni Relos
Silver Spring, MD