This dead boxwood shrub was spray painted to keep the hedge looking complete (not a good color match though).
Apparently, boxwood hedges date back to the Greeks, and they are a mainstay for more formal gardens. Though the shrub isn’t suited incredibly well for Central Texas, it is used all over the place. I take it that it requires a ton of water and doesn't like intense sun very much. As an alternative, lots of folks use a few dwarf varieties of the native evergreen yaupon holly, Ilex vomitoria, which can be pruned and pounded into many different hedgy shapes. I’ve also seen dwarf wax myrtle, another native variety, used in this way.
Here's a very cool example of a kind of boxwood knot in a corner of James David's garden: