Ursula,
I thought Plumeria branch only after flowering. If this flowered on me then i was in a coma and missed it all. (My luck)
I just took a peek at it and i don't see a branch forming. Ive attached a pic . Center of pic and up at about about 1/3rd you'll see a bright green spot. Thats where the leaf was. No branch forming.
Ken, mulch is a good idea, but in the winter spider mites can be a problem inside so maybe i just stick with the gravel(??)
Not sure; you've both given me a few things to think about. (Not wanting to think about winter right now...trying to enjoy the summer we do have. Its been 'perfect' weather. Sun, warm and not too much rain but enough to keep the lawn green)