Tropicals & Tender Perennials: Too much rain for my plummies?, 1 by Clare_CA

Clare_CA wrote:
Vi, I have most of mine in three- and five-gallon containers. When I'm rooting cuttings, I root them in one-gallon containers and then eventually repot them to three- or five-gallon containers. Art_n_Garden is right that it is very dry here. You might need to water less unless your plumeria is rootbound and is drying out quickly.

Art_n_Garden, the brown spots could be fertilizer burn or sun burn. Sometimes the leaves can burn in super high temperatures, especially with low humidity.

This is an old picture, but it shows the size of the plumerias in their five-gallon containers. You just want the container to be slightly larger than the rootball, and if you have good-draining soil, then you don't have to worry about root rot or overwatering.