Iris Leaf Spot

Question

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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Answer 1

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.

https://www.gardeningknowhow.com/ornamental/bulbs/iris/iris-leaf-spot.htm