By seeming to jut out visually from foundation beds, lamp-post plantings give the whole ensemble more depth than foundation beds, alone, would otherwise provide.
Pictures of Foundation Plantings: Lamp-Post Plantings
Lamp-Post Plantings As an Extension of Foundation Beds
Lamp-post plantings can complement foundation beds....
Photo of lamppost planting and foundation planting. The lamppost planting is a nice addition, giving the overall design more depth.
David Beaulieu