If I move it to a shadier location, which is near a walnut tree, will it survive?
Here are a couple articles that may help:
https://www.gardeningknowhow.com/ornamental/shrubs/rhododendron/rhododendron-care.htm
https://www.gardeningknowhow.com/ornamental/shrubs/rhododendron/pruning-rhododendrons.htm
As far as planting near your walnut tree, please contact your local extension service or a nursery and tell them 1) what kind of walnut tree you have, and 2) what variety of rhodie you're growing. They should be able to help you.
I mistaking transplanted my Rhodedendron into a larger pot in the autumn using no acid soil. Flower heads set but did not open and later died. I discovered green fly in the spring, which I successfully treated. I replanted with ericaceous soil and now the leaves are crisp and dying. The stems are still green under the outer skin. I have fed with ericaceous feed as directed and also sprayed the leaves with water and also with a dilute mixture of ericaceous liquid feed. The plant thrived very well for more than six years until I transplanted it. What can I do and please can you tell me if there is any chance my plant will survive. Many Thanks for any advice you can offer. This plant is of sentimental value.
Leaf scorch, which is what your problem sounds like, can take place when the weather changes abruptly from overcast to warm sunny or windy. Mulch around the base of the plant without letting it touch the stems, and water it deeply.
Here's an article about fertilizing rhododendrons: https://www.gardeningknowhow.com/ornamental/shrubs/rhododendron/how-to-fertilize-rhododendrons.htm
One of these bit me! Now I'm concerned that these might be the so called kissing bugs. They are only about 3 mm in size. I live in East TN near Knoxville. We had too much rain in early spring, now we are in a drought.
That sounds like a good question for your local extension agent. Chances are that others in your area are seeing this same pest, too.
Here is a link to their publications and contacts:
http://www.tnstate.edu/extension/publication_index.aspx
http://www.tnstate.edu/extension/coopext_dir.aspx
And one of ours:
https://www.gardeningknowhow.com/ornamental/shrubs/azalea/common-azalea-problems.htm
I have a rhododendron that is 30+ years old. It has always been allowed to grow freestyle, but last year my nephew decided to "surprise" me by trimming it for me. Since then, it has looked so bad, I thought he had killed it. I am trying to nurse it back to its former glory, but dont know when is best time to trim, or how to trim
Since your nephew gave it a good trim, you might want to go lightly on the trimming for a while, possibly only to remove spent flowers in the spring.
Here is information on how and when to prune rhododendrons.
https://www.gardeningknowhow.com/ornamental/shrubs/rhododendron/pruning-rhododendrons.htm
I have had this climber for about 10 years and it has never bloomed. Have tried cutting it back, bloom food, can you please help me with this? My friend has one and she has the same problem; we bought it from the same place...thanks
Unfortunately, this is a common problem that has many causes. Usually, a lack of light, or too much nitrogen fertilizers will be the culprit, but there could be other reasons too.
https://www.gardeningknowhow.com/ornamental/shrubs/rhododendron/rhododendron-not-blooming.htm
Every year my rhododendron blooms nicely but the blooms last only about three days and die off.
Unfortunately your photos did not come through, so I cannot see any other damage or symptoms. Without knowing much about their care, I can only assume that one or more environmental factors is out of balance. They are quite particular.
In the meantime, this article will help you with their care:
https://www.gardeningknowhow.com/ornamental/shrubs/rhododendron/rhododendron-care.htm
Not sure why they are dying
The soil just appears to be too wet, is all.
Back off on the watering, and make sure that these get PLENTY of shade. These shrubs do not handle direct sun, well.
Here is an article that will help you care for them:
https://www.gardeningknowhow.com/ornamental/shrubs/rhododendron/rhododendron-care.htm