One of the easiest landscape 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’). “