Plant in Numbers
One of the easiest landscaping ideas to implement -- and one I always use when designing a garden or landscape -- is to plant big swaths of the same plant for bold interest. Here, for example, I love how the planting bed offers a big, bold burst of chartreuse from a mass of golden creeping Jenny (Lysimachia nummularia 'Aurea'). It's contrasted (in color and texture) by a planting of blue fescue (Festuca 'Elijah Blue').