Limelight Hydrangea
Q.

Does Anyone Know What This Green Mold Is On My Limelight Hydrangeas?

Zone 64080 | Gustinz added on March 19, 2020 | Answered

We have it on 3 of 22 and they are 3 years old but also a tree behind them died as well.

A.
A.Answers to this queston: Add Answer
BushDoctor
Certified GKH Gardening Expert
Answered on March 20, 2020

that lichen isn't harming anything. It can signal that there is something else that is harming your tree, though.

Depending on if the tree behind it died of old age (Those don't really live all that long) or of disease it could be something that you may want to take a look at.

I would treat with a fungicide to be safe. This article will help:

https://www.gardeningknowhow.com/garden-how-to/info/using-fungicides-in-garden.htm

This article will give you more information about the lichens that you are finding on your shrub: https://www.gardeningknowhow.com/ornamental/fungus-lichen/treatment-tree-lichen.htm

This article will help you with hydrangea care: https://www.gardeningknowhow.com/ornamental/shrubs/hydrangea/growing-hydrangeas-hydrangea-care-guide.htm

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