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Iris Plants

Q.Iris Leaf Spot

Zone 48842 | rcknickmeyer added on August 15, 2020 | Answered

All the bearded iris in my garden look like this. I’m pretty confident this is iris leaf spot, but what should I do. Online guidance says remove infected leaves, but all the leaves are infected.

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Certified GKH Gardening Expert
Answered on August 16, 2020

In the spring, you can apply a fungicide, but right now is the time to cut back your iris leaves to about 3 inches. That should cut off all the spots. You can go to 2 inches if needed.


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