Sumac Has Yellow Spotted Leaves
I have a sumac plant that was very hardy the first couple of years. Now it has very sparse growth on the branches and about 30% of the leaves have started to turn yellow with spots and fall off.
Fungal leaf spot diseases can cause the leaves to drop prematurely. These are usually not life threatening and do not require treatment. The damage looks devastating since sumacs are mostly leaves with a few un-branched stems. So when the leaves start to drop the plant looks pretty sparse. I would not be concerned. Rake and destroy fallen leaves. If the plants show signs of dieback or discoloration on the stems your plants may also be suffering from a wilt or canker disease. Prune 9 to 12 inches below the dead and discolored areas or right back to ground level. Disinfect tools between cuts. If dieback continues you may want to call in a landscape professional to examine your sumac and diagnose the problem.
Related
Categories
Upcoming Appearances
June 22, 2021
Low Growing Shrubs & Vines
to Attract Pollinators
Webinar
July 17, 2021
Shade Gardening Seminar &
Sanger House Gardens Tour
In-person event
July 18, 2021
Drought Tolerant Perennials & Shrubs for Southeastern Wisconsin
In-person event
July 20, 2021
"Ask the Plant Doctor"
Question & Answer Session
Webinar
July 24, 2021
Lake Country Art & Garden Tour
In-person event
Register today! Plus, watch Melinda's past webinars ON DEMAND
for a limited time.
Learn More
Book an Appearance
Enter to win 3 bags of Wool Pellets and reduce watering by up to 25%!
