Answer: I'm sorry you are having trouble with your plants. Based on your description, I am not certain what is happening to them, there are many possible reasons for a plant to fail ranging from inappropriate planting site to poor installation to pest or disease. Since your retailer/installer has apparently not been helpful, you might wish to consult with your local county extension to try to determine what is wrong with the plants and do some trouble shooting. They may appreciate overall photos and closeups of any discoloration, along with a fresh cut sample kept cool and enclosed in a plastic bag. Based on knowing a firm diagnosis, then you can then decide how to proceed. If it is something that requires a chemical treatment, the extension staff will have the most up to date recommendations on what to use and how/when to use it. Monrovia is a wholesale only nursery, so any warranty on plants or installation would be based solely on the nursery where you purchased/installed the plants. I'm sorry I can't be more specific for you.
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