I'm feeling as dumb as a doorknob here, but I can't figure out when to prune
my Texas (blue) sage. It is about to devour my driveway, but I'm afraid to
prune it and wind up killing or maiming it.

It has bloomed almost all year, thanks to it's proximity to the sprinkler
system. The leaves are lush and green on the ends of the branches, but the
branches themselves are very woody going into the heart of the plant. Being
evergreen, I worry that if I cut it back I'll wind up with a bunch of woody
sticks and no leaves. And I worry that if I trim it during the winter I'm
going to shock it and kill the next season's growth or something like that.

Can anyone tell me when is the best time to prune this shrub? Thanks for
your help.

Julie