Q.Pruning crepe myrtle
Live in Central Florida – get occasional freeze in Jan or Feb. When should I prune my tree back? Some here say Jan – I thought it was always Feb or March.
February is a good time to prune the tree in it's dormancy.
Don't be to quick to prune your tree, often a Crepe Myrtle does beautifully without pruning.
Here are some links that will give you more information and help you.