Q.Frost Damaged Bougainvillea Tree
My bougainvillea trees were damaged by the freeze in Florida this year. I pruned them at the first sign of spring and new growth is growing only out at the base. Both trees are over 6 feet tall; and if I cut down to where the green of the trunk is, how do I get them to grow back to the height they were or will they grow back at all?

Certified GKH Gardening Expert
Typically, a bougainvillea tree is pruned in a specific way to get it into a tree shape.The best time to prune bougainvillea is in late winter or early spring after it flowers, or at the start of the rainy season. If you wait until late summer or early fall, your plant may produce fewer flowers during the following winter.
https://www.gardeningknowhow.com/ornamental/vines/bougainvillea/pruning-bougainvilleas.htm