Q.I Have A Crossvine That Had Prolific Blooms In Spring, Now I Have A Few Blooms Higher Up Sept.
I live in Georgetown, Texas. Also I’ve heard that this plant blooms “on old wood,” what does that mean? As then this article talked about pruning back after blooming which I failed to do. help

Certified GKH Gardening Expert
Crossvine only needs occasional pruning if it is getting out of bounds. It does bloom on "old wood" which means the flowers develop on the previous season's growth, usually the previous summer. So any pruning done in late summer or fall most likely will cut off the developing blooms. If you look closely at the vine, you will see the buds.
So don't worry about pruning the vines now, you will have another chance next spring after it blooms.
https://www.gardeningknowhow.com/ornamental/vines/crossvine/bignonia-crossvine-care.htm