We have 2 Azeleas in our yard. Both were planted by the original property owner's sister. The Pinkster was planted back in 1986 & it is somewhat struggling since hurricane Helene hit Spruce Pine North Carolina but it is making a comeback. The main Azelea is over 12' tall & 44' circumstance. It has been trimmed g kept in a gumdrop shape since it was planted back in the 1950's by her older sister (Jewel). She is now 86yo & told me of a time she went to South Carolina or Georgia & saw an Azelea that would now be well over 100 years old & over 15' high & 100' long due to their natural propagation method similar to air layering but allows the branches to grow into contact with the ground & begins rooting again allowing it to spread. The deer have had little to eat since the Hurricane & I've had to trim much of the base about 3-4' high & found numerous new growths from the exact method Mrs. Jewel described & it is thriving ❤️!! The 2 pictures above are our pictures we have from April 2024 & today.. My family will be getting Azeleas from it as gifts..

Since you haven't gotten any answers here, you might want to ask on your local forum - I think there's a TX one - since folks there have more experience with your growing conditions.

It's hard to guess at an answer to your questions without a photo of the plant. Also, where are you located (major city nearby is close enough). Was this nursery stock or a florists plant that had been forced into bloom? From what you briefly describe, my first thought is a watering issue. They prefer an acidic moist but well draining soil. Azaleas often don't thrive in pots in hot humid climates but you haven't had it long enough to experience issues from that. The rootball could have become dry enough that when you water, its not penetrating and only running out the drainage holes around the rootball. Indoor humidity is rarely good for azaleas, they infrequently thrive as house plants. It's not a fertilizer problem so don't fertilize again - these are not heavy feeders and you'll accomplish nothing in correcting your problem. Give us a little more information, a photo would be helpful, and we can try to point you in the right direction...

Thank you everyone! My "rhododendron/azalea" experiment over the winter was fairly successful, I have to say! Of the 2 Nova Zembla's that I planted, both survived with burlap protection and are now doing well. They did not bloom bu t I hope that they will do so next year :-) Then for the PJM, it also survived well and has been blooming too! As for the 2 Double Pink Azalea's from the Electric Lights series that I planted last year, both appeared dead earlier this spring. Then one started to show some life and is now leafing out nicely, but the other one is mostly dead.... All of the got the same burlap protection. So now I am keen to try more PJMs this year! Thank you again for your information and help. I hope that these guys will continue to do well over the many years to come!