1. Begin your color story with your home's architecture. Your permanent landscape features — patios, planters, retaining walls, fences and other structures — should coordinate with your home's facade. Select your signature color to match or echo the paint, stain or natural finish of your home's exterior.

The outdoor space featured here uses beautiful stone that includes a gray-taupe color, similar to the house's shingles at its core, but expands and warms the palette in a natural and organic way. Similar neutral hues are used for the countertops and furniture. Pale blue as an accent color adds just the right amount of interest without disrupting the overall sense of calm.

A neutral plant palette of silvery blue is easy to replicate, especially in areas with lots of sunshine. Most plants with gray or blue foliage thrive in full sun, but the colors — reminiscent of water and ice — are visually cooling. Think succulents, grasses and herbs.

3. Use a strong color to unify a large garden space. Silvery lambs' ears echo the color of the home's facade and serve as a foundation for the garden in this example.

Vibrant purple is the dominant signature color that's used to carry the eye across a large, complex planting. Purple is a cool hue that harmonizes well with silver-gray.

Choose a flower or foliage color that can be interpreted through different plants based on bloom time and growing conditions, like microclimates or hydrozones.

In a smaller space, like this courtyard, one special plant may be all you need. The rounded blue hydrangeas are a beautiful complement to the blue-tiled fountain. Used repeatedly as a signature plant, they also unify the diverse foliage plantings in the garden.

4. Choose a color for high drama. White and red contrast the beautiful natural surroundings of this home to the extreme.

The muted greens and browns of the desert landscape serve as a backdrop here, while the house and outdoor living space take center stage. White, as an echo of the home's color, is used like accent marks to draw the eye through the space and visually expand it. The limited palette of purple and white petunias and red Pelargoniums is used to great effect in echoing both the colors and the pattern of the pool furniture.

This water and fire feature stands out dramatically as a focal point — thanks, in great part, to its color. Red is the strongest color in the landscape because of its high contrast to green. (They are opposites on the color wheel.)

In addition, this structure is nicely anchored into its outdoor environment with a color echo via plant foliage. The bold red foliage of New Zealand flax (Phormium spp) is a perfect match for the hardscape.