I have very old azaleas which have not had any care other than pruning out the dead over the past several years. Now I notice something that looks like lichens on the stems. Can I be correct? Does it hurt? Is it a sign that they need some better care? What kind? Thanks for your expertise.
Baltimore County Maryland
Lichens are completely harmless to shrubs and trees. They do tend to grow on still or slow-growing things. https://extension.umd.edu/hgic/topics/lichens
You mention that your azaleas are old; perhaps they have other problems, but if the stems are developing healthy foliage/flowers, just enjoy them.
You are welcome to send us photos of the azaleas if you have other concerns and would like us to take a look. You can click on "choose file" below and attach up to three files from your photo library.
Thanks for the info