Hi all, newby here. I have a 3 1/2 foot tall plumeria that is not showing any growth. I bought it 2 years ago in a 12 inch black plastic pot. The soil looks to be dirt/potting soil with very little perlite. It developed some beautiful bouquets that first summer. I brought it in the house the following fall once the leaves started turning yellow & did not water it during the winter. All the leaves fell of that winter. Last spring I put it back outside, waited for it to claw before watering it sparingly. But it did not grow leaves past the claw stage for the entire summer. I watered only around the edge of the pot only when the soil was very, very dry. Eventually the claws turned black - but not the tips.
I've since noticed that other people in the neighborhood leave their Plumies out during the winter & their leaves thin out & yellow, but don't all drop off (I'm in southern California). Since my Plumeria didn't do anything last summer, I thought that maybe taking it into the house for the winter "shocked it" somehow...
So this winter, I left it outside, didn't water it (because no leaves were growing) & only brought it in when it got really cold or when it rained.
It is now April, it's warming up, once again there is no new growth & I'm wondering why. The trunk is about 3 feet tall with 4 branches all leaving the trunk at the same area. The branches are 5-8 inches long and are still green. I checked for soft/squishy areas & everything feels firm except for the top 5-6 inches of the trunk - right below where it branches.
I have a bad feeling that there is some kind of rot happening in the top end of the trunk. What are my options? Where did I go wrong? Thanks.