Use Repetition: Sue Sikorski's tricks is repetition. By using the same plant or plants with a similar feel, you can draw the eye through your borders. Here, for example, she's combined upright, light-color plants, including pink astilbe, lamb's ears, white veronica, and white delphiniums, to lead the way to her cozy bench.
Green-Roof Birdhouse - A few extra tips to make your project a success: For winter, put your birdhouse in the garage, or just replace plants in spring. Succulents are a good choice because they do well in shallow soil. Moss is a good plant option for birdhouses that will be in shade. Put drainage holes in the overhanging area of the roof to avoid root rot in wet weather.