Good advice from everyone here. I have quite a few plumeria in clay/ceramic pots that only have 1 drainage hole. I like the look of them and it is ALWAYS windy here, so the weight of the pots stabilize the plants better. How I get around my trees having 'wet feet', is getting a larger pot than necessary and filling the bottom of it with gravel, stone, broken pot pieces, etc. to allow the water to drain away from the soil/growing media and therefore away from the roots.
I also have been known to be lazy and don't like moving or toting around ceramic/clay pots filled with stone, so another thing I use in my heavier pots is cut up pieces of swimming pool noodles. You know, the long macaroni type floaties that you can get pretty much anywhere in the Summer. They cut up super easily, and drain exceptionally well. I have never had an issue with them degrading quickly or causing any issues with plants or roots.
