I have a Jerry Donen that was in a pot (8-15 gal.) until a month ago or so. It has buds and very thin and spindly stems that were fine until the flowers opened. Now, the weight of the flowers had tilted the branches such that the flowers now point down. Last spring, while in the pot, the flowers either didn't weigh so much, or I don't know, but the thing wasn't floppy like it is now. I don't expect to change it for this season, but is there anything I can do for next year that will encourage stronger growth that can support the blooms?

The plant is a little over 24" tall now, I'd expect it to be taller next year, but this spindly branch business is annoying on a plant that has beautiful blooms I'd LOVE to see oriented the way they're supposed to be! Feed it? Prune it? What should I do - anything???