Pruning Before Moving Potted Esperanza, Mandevilla And Plumbago Plants Indoors For Winter?

Question

I live in North Texas and have an 8′ x 8′ heated greenhouse to house several bougainvilleas. My problem is I have limited space to house my 7’x 4′ esperanza, 4′ x 4′ plumbago and 4 mandavillas. I have no room in my yard to increase the size of my greenhouse leaving reducing the number of bougainvilleas which have taken me several years to get them to bloom. I give away several “bougies” each year to make room for newly propagated “bougies” from my 6′ x 5′ “mother bougie”.

Answer 1

I show that you are in USDA zone 8a, so you do have temperatures below freezing. Yes, you can cut back your plants and check for insects before bringing them in for the winter. You also could take cuttings and start new plants to save space.
Here is more information:

https://www.gardeningknowhow.com/garden-how-to/info/what-is-overwintering.htm

https://www.gardeningknowhow.com/ornamental/vines/mandevilla/winterizing-mandevillas.htm

https://www.gardeningknowhow.com/ornamental/shrubs/esperanza/esperanza-plant.htm

https://www.gardeningknowhow.com/ornamental/shrubs/esperanza/pruning-esperanza-plants.htm

https://www.gardeningknowhow.com/ornamental/shrubs/plumbago/growing-plumbago-plants.htm

Answer 2

I live in your area as well. I always prune in spring, even when bringing inside for winter. Pull off dead leaves and cut back any dead stems but keep it at a minimum.
Then give them a nice prune when spring comes. I find this makes most of mine fuller when they come back.