I live in Missouri and am attempting to grow a Plumeria in my sunroom. This winter I did not move it out of the sunroom, but let it continue to grow. I move it throughout the day so it can get as much as 8 hours of sunlight(when weather allows). The room faces west and we maintain a temperature of about 68 to 73 F.
It is rooted from a cutting my son and daughter brought me from Hawaii 2 years ago. It is currently in a 7 1/2 inch pot, is 20 inches tall, and grew about 10 inches in the last 3 or 4 months. Can I repot it in a 15 gallon pot, put it on a garden trolly, and not repot it anymore?
Will that help the trunk get thicker and branch off? Can I simply prune it ocasionally to keep it a managable size?
I feed it Miracle Grow (15-30-15) every other week. It has never bloomed.
I am not a gardener and don't usually keep indoor plants other than a peace lilly and ivy that I don't have any longer. I am a novice when it comes to growing plants that require more care.