Starting Your Garden Keep in mind that perennials will remain in place for many years, while annuals must be replaced every year. You can experiment each year with different color schemes and planting designs. Use the perennials as the framework around which to plan the annuals. But be sure to blend the colors and blooming times carefully so you will have a spectacular garden display throughout the year. Also, consider using foliage plants.
Many leaves offer shades of gray, blue, silver or gold.
Color contrasts among foliage are often as striking as those among flowers, and they last longer. Foliage plants also add interesting texture which is important in garden design. In planning your garden, you want to achieve harmonious color blends. Neutral or subdued hues planted between brilliant colors will prevent clashes and make the brighter colors more prominent. Colors are either warm or cool, depending upon the hue.