The High Line, a converted elevated railroad track in New York City, is planted with natives along the walkway. The result is an easy-care space, but it was achieved after carefully considering plant placement so the plants would grow naturally yet not overrun the beds and the walkway.Tip: Adding a planting bed in front of a potentially dangerous edge, such as the fence line here, and then planting it solidly, helps create a subtle physical barrier. You may not have a drop-off, but the same idea would work along the edge of the yard, encouraging people to use the pathways rather than tromp across the lawn.