Build a white pergola. There's really nothing like a well-built pergola to offer shade and respite outdoors. If your home is white, consider a matching pergola — a bonus room from which to enjoy the view. Flank it with silver and white plants, framed in a classic boxwood parterre for classical elegance.
Nothing lights up shadowy recesses like pure-white flowers. Fortunately, there are enough choices to make every garden shine all season -- even at night.