Q.Do My Plumeria Have Root Rot Or Some Other Fungus?
Hello, about 4 weeks ago i transplanted two – 5 ft plumeria trees sharing a pot to their own pots. When i did the transplant it was very hot so i made sure they had plenty of water but the pots drained well. They both seemed to go into shock, with droopy leaves and i was hoping they would bounce back but i’ve noticed the small branches at the top are soft and not hard like my other plumeria. I just realized i had planted these 2 plumeria in pots that i had plumeria in prior and lost those plants to root rot. Could that be the problem? If so, what is the best remedy? New pots & new soil? Should i use some fungicide? Please help! Thanks

Certified GKH Gardening Expert
Just to be on the safe side, I would repot in new soil and new pots like you said. The heat may also have something to do with it. Plumerias are best repotted in late winter or early spring.
It could be stem rot starting. Root rot usually starts from the bottom and moves up the trunk. I would hold back on the water, you just may have overwatered. Do not water again till the soil is dry.