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Sick Rhododendron

Posted by dwaugh Ohio (My Page) on
Mon, Apr 23, 07 at 15:45

I just moved into a new house that has lots of roses and some rhododendrons and azaleas. Most of the rhododendrons look good... one does not
http://www.personal.kent.edu/~dwaugh/sickrhodo.jpg
I have pruned the dead branches and gave is a light application of hollytone. I'm wondering if I should remove the dead leaves on individual basis, remove the whole branch(s), or just leave it alone. I was hoping some people in the know could look at my photo and offer some suggestions... Thanks, David


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RE: Sick Rhododendron

We probably need a lot more information (where is it growing -- soil type -- watering -- things like that) but at first look, it could be sun damage/drought. Is it in full sun? What kind of watering does it get (for example, if it's under the eaves a house it may not get enough water from rainfall).

It could be a disease, too, but it's hard to tell from the photo. I would hesitate to tell you to do anything to the plant to address the problem without knowing exactly what's wrong.

Rhododendrons tend to have problems in the Midwest; they just don't thrive here like they do in some areas of the country, but they sure can be beautiful.

If you have a local master gardener clinic, take some good photos (like the one you have and some close ups) and a good sized piece of the plant (leaves and stem) and take it in to the clinic. They should ask you a whole bunch of questions that will help them figure out the problem. Or, if there's a garden center you especially trust and know, do the same with them.

Sorry I don't have a better answer; good luck!


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RE: Sick Rhododendron

As a PS, you might post in the rhodie forum... see link. Folks there might be able to help more! Good luck...

Here is a link that might be useful: rhodie forum


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RE: Sick Rhododendron

Thanks for the replies. I just moved into the house and don't now anything about what was done before. I have only fertilized and mulched. Its not in full sun. I will try to get some better pictures and post in the rhodie forum. Thanks!
-David


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