I think my gardenia got over watered while we were on vacation. The stems are alive but the foliage is all brown. What can I do to bring it back to life?
This artilce will help determine if in fact it's been overwatered: https://www.gardeningknowhow.com/plant-problems/environmental/signs-of-plants-affected-by-too-much-water.htm
Root rot also may have set in if it was overwatered. Here is more information on that: