Have a 20' tall Crape Myrtle tree, not sure what kind, the leaves are as big
as a man's hand, and a lot of leaves to sweep up in late winter early spring
each year. Located in south Florida, zone 10.

Two of the branches were split from hurricane Frances and need to be trimmed
back. A friend told me it needs to be pruned all the way back to the trunk,
I thought this is only true for the shrub variety and not the tree variety.
Any idea how much I should prune this one?

Thanks,

O