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Ninebark Shrubs

Q.Little Devil Ninebark – Why Are Leaves In The Interior Turning Brownish-yellow?

Zone Bath, ME 04530 | keepah1 added on August 2, 2020 | Answered

I pruned the shrub about two weeks ago. Have been watering it frequently during this very hot, humid spell we are experiencing here in Maine. I just noticed yesterday that there are leaves on the “inside” of the shrub which have turned color. They are not dropping off yet but look as though they may.

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Certified GKH Gardening Expert
Answered on August 4, 2020

Hot, humid, and wet describes the perfect conditions for infections to set in. Combine this with pruning at this time, and that will be a recipe for disaster!

Pruning should take place during the mild portions of the year, or best, during dormancy.

From here, you will need to treat with a fungicide. Care will also require that you only water when the soil is completely dry down to about 3 or 4 inches.

Here are some articles that will help:




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