Have you ever really looked at the colors of a native desert landscape? Plants with silver and blue foliage predominate. Most need abundant sun, low relative humidity, alkaline to neutral soil, excellent drainage, and soil low in nutrients and organic matter -- all common to arid or desert climates.
Although the leaves appear to be silver or blue, they're actually various shades of green. Tiny surface hairs or scales usually coat the green leaves, keeping the foliage cool by reflecting sunlight up and away from the plant. Other plants may be hairless but grow with a thick, waxy coating that helps retain moisture in the leaves.
You can design a landscape using only plants with silver and blue foliage, or mix them -- they look especially striking when combined with bright or clashing colors such as orange, yellow, and red.
The good news about desert landscape plants with silver and blue foliage is that they often come in an interesting assortment of unusual shapes and textures. Combining these textures and shapes can create a fabulous garden that doesn't rely on blooms to carry the day.
Desert landscapes are not the best place for lawn grass because of the water requirements, but ornamental grasses, once established, adapt well to dry climates. Their elegant foliage offers four-season interest, and they can serve as screens or as focal points.
As with blue or silver garden plants, you can devote an entire area just to grasses, or you can combine them with herbaceous and woody plants.
When selecting an ornamental grass, select one that is not considered invasive in your region. For example, pampasgrass escaped from gardens now outcompetes native plants in some regions.
Ornamental grasses are classified as warm- or cool-season plants. Warm-season grasses are slower to emerge from dormancy, flower in summer to early fall, and become fully dormant with fall frost. They do better with hot and dry conditions and require fewer divisions than cool-season grasses. Cool-season grasses begin growing in early spring, flower in summer, slow down or go dormant in summer heat, then begin growing again when temperatures cool. They may need more water and frequent division to keep them healthy and vigorous.
Desert landscape plants often have interesting or unusual shapes and forms, such as spikes and rosettes, that lend themselves to a sculptural type of design.
Blend your own found objects, boulders, containers, or sculptures with these plants for an artistic, attention-getting desert landscape