I live in Mesa AZ and planted these 2 rubra plumeria plants last July. I used potting soil to which I added about 1/3 perlite. Being from Mesa I tend to water a lot and everything I read said that they quickest way to kill a plumeria is to overwater it so I have been watering only about twice a week. Everything seemed to be going well until we hit temperatures over 100. The plants are on my front porch (east side of house) and are between two 2-story houses so they only get morning sun. I had the plants on the edge of the tree line so that they would get some direct sun but as the temperature has now risen to 117 I have moved them completely under the tree so that they will not get any direct sun. I noticed that the leaves were turning yellow and thought that I was perhaps watering too much but now I am beginning to think that I am not watering them enough. From the photos can you tell if I am watering too much, not enough, or if they are just getting too much sun? Also, I think the one plant is starting to bloom but I am not sure because it is pretty late in the season to be blooming. This is my first experience with plumeria so any advice you can give would be much appreciated.
