Boxwood Hedge (grown, vines, spring, summer)

[Dockside]

I need advice. I have a boxwood hedge on one side of the house that's been neglected for awhile. It's about ten feet tall and overgrown with vines. I want to cut it back to five feet and strip out all the vines, but I'm not sure the middle of this hot summer is a great time for the plant. Has anyone had experience cutting a boxwood hedge back so much, and what is a good time of year?

[cittic10]

A 10' boxwood?
If you post a picture we can try to identify what it really is.

As a general rule, never remove more than 20% of a tree's canopy in one year.

[wit-nit]

Depending on the variety of Buxus some can grow up to 20 feet. Cutting it back now in this tremendous heat spell would not be a very good idea. You will burn newly exposed tender foilage.
Here is some helpful information.
http://www.ehow.com/info_8137710_tal...rubs-grow.html

[Dockside]

Spring or early winter...thank you very much.