We visit Corpus very often. You have experts at the South Texas Botanical Gardens at your disposal. Not only are they helpful, they have an amazing show of Plumeria seen as you first drive up into the parking lot. It will make you envious! Not that I discount anything Dutchlady has to say. She too is an expert and has taught me a lot!
I have a yellow/orange NOID from Gills Nursery that I am waiting for blooms as we speak. I have had it for 2 years. I finally got to give my plumeria the boost that they needed this year after a few years without food using Super Bloom (every 2 weeks during the summer) and have been blessed with blooms all summer long. Next spring, now that they are on their feet again, I will give it a few doses of Super Bloom then go with Hetty's 13-13-13 diet. One tree I have waited 20 years for blooms.
Two of my plumeria are in 15 gallon pots. They are 8 feet tall. Two are in 12 gallon pots and are 5 feet tall. Please do not discount the need for nutrients in the soil. Soil, food, sunlight, some water but not a lot, and good drainage makes your plumeria happy.
We were just in Corpus and visited Gills, and Turners last week. I was surprised at the price of plants. No one was having fall sales? They sure were proud of them! I did pick up a red kalanchoe Calandiva in a cute watering can planter as my souvenir.
Yellow/Orange NOID
(sung to the tune of, "Any Day Now")
