I have a Brazilian Rain tree and the branches are growing very thin (tiny). Leaves are appearing profusely at the end of these tiny branches, but I'd like to see the branches sturdies. I'm not sure how to cut back to make this happen.

Maling wrote:

I'd like to see the branches sturdies. I'm not sure how to cut back

Don't.

I would recommend planting the tree in the ground and letting it grow freely for (at least) a few years so that the trunk can thicken up, then worry about the branches.

Ed

the whole trick is just about pruning the strong thick branches so that the smaller weak branches can develop better..