It has baby leaves coming out on it. It is 4 feet tall above the bush.
It looks like a wayward stalk or perhaps something that had been growing there before the bougainvillea. You can prune the stalk back by about half to keep it in line with the rest of the plant. If the leaves look different from the bougainvillea and you think it is a different plant, you can cut it off at the ground or try to dig it up.
https://www.gardeningknowhow.com/ornamental/vines/bougainvillea/pruning-bougainvilleas.htm
https://www.gardeningknowhow.com/ornamental/vines/bougainvillea/bougainvillea-garden-care.htm
to transplant these beauties? It was a large Bougainvillea plant. I cut it into smaller sections, and it immediately went into shock, being surrounded by barriers until I could get everything contained. I began by stripping thorns and leaves. Herein lies the question: How do I successfully transplant this beautiful plant? I have already picked out the location. Thank you sincerely.
This will be transplanted just like most other plants, and can be done quite easily. These articles will help:
https://www.gardeningknowhow.com/garden-how-to/info/spring-transplant-tips.htm
https://www.gardeningknowhow.com/ornamental/vines/bougainvillea/propagating-bougainvillea.htm
https://www.gardeningknowhow.com/ornamental/vines/bougainvillea/bougainvillea-in-containers.htm
https://www.gardeningknowhow.com/ornamental/vines/bougainvillea/bougainvillea-garden-care.htm
One branch took off growing. I would like to cut it and regrow it.
Get softwood cuttings from the plant. Here are more detailed instructions: https://www.gardeningknowhow.com/ornamental/vines/bougainvillea/propagating-bougainvillea.htm
I have a SW and a NW spot for planting. Which would be a better? I live in Seminole, Florida
They prefer warm, well draining, full sun locations, defined as much more than 6 hours of direct sun exposure in the summer months. In Seminole's USDA Zone 9b, you may encounter some winters in which the top growth is killed by cold temperatures if you do not winter protect so consider also growing it in pots. But you could try growing it outside too and annually prune off any dead wood killed by winter as I have one near me in Zone 8a that faithfully returns and blooms even with low temperatures of -2°F. That specimen is in a SW exposure. Of course, it starts to bloom slightly later than if winter did not kill the top growth. For more information, you can refer to: https://gardeningsolutions.ifas.ufl.edu/plants/ornamentals/bougainvillea.html and https://www.gardeningknowhow.com/ornamental/vines/bougainvillea/bougainvillea-garden-care.htm
What type of plant food to feed Bougainvillea?
You can use a balanced, slow release fertilizer like 10-10-10 or 20-20-20. Here is more:
https://www.gardeningknowhow.com/ornamental/vines/bougainvillea/bougainvillea-garden-care.htm