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Azalea Plants

Q.40 Year Old Azalea with Fungus

Anonymous added on May 13, 2014 | Answered

I have an azalea which is around 40 years old. Half the shrub has died off and the whole thing is covered in some sort of pale grey/green rough looking fungus on the twigs of the branches. There are no flowers this year and it looks very bad. I am also bothered that it could pass to the other azaleas in my garden.

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Certified GKH Gardening Expert
Answered on May 13, 2014

What you are seeing on the shrub is lichen. It is not the cause of the problem, but rather a symptom. They tend to attach to shrubs/trees that are sickly and unhealthy. This article will give you more information: https://www.gardeningknowhow.com/ornamental/fungus-lichen/treatment-tree-lichen.htm In regards to what may be wrong with the azalea, I would take a look at the roots. You may have some root rot or the shrub may simply be dying naturally. It may also be a fungus attacking the azalea, so you should go ahead and treat it with a fungicide, which will actually also get rid of the lichen.

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