Well, you've all given me a lot to think about and consider. One thing I do need to clarify is that these were not root cutting, but stem cuttings. It's a rather common practice down here to just cut off a limb and stick it in the ground, which shockingly seems to work--no real drying time required as suggested on other sites. Mine looked like they were little twigs just cut off of a larger plant when I got them...about 8" and as big around as my thumb. I've got the one in a five gallon, so I will increase the size on that one as soon as I can. The other one IS a ten gallon. I'll see if I can find larger. I don't want to have to move to tubbies, but if I have to then I guess I have to. I'm not financially well off enough to buy something more expensive than I already have them in.
I have about one more month before dormancy, so I'll start next year with the bloom booster in the spring and we'll see how that goes. Beyond that I'll do the 13 diet for them. Right now I'm just going to pray that I get them through the winter as last winter was a bit touch and go!
Also--ShadyGreenThumb--I go to the Botanical Gardens here EVERY chance I can. You are correct about the Plumeria's there...they are spectacular! I always feel rather awkward about talking to people there though as they always seem busy doing their thing. Perhaps I should just grab the horns and do it in the future if I have questions.
Thanks again folks!!