Plants for Dry Conditions
Even in regions where rainfall normally is abundant, plants can suffer from
lack of moisture. When root growth is limited by concrete or asphalt, or when
plants are grown in containers or in excessively well-drained sandy soil,
moisture stress can be a constant problem.
In some cases, the soil may be improved by adding organic matter such as peat
moss or compost that will help retain moisture in the soil. Also, mulching will
help by reducing evaporation of water from the soil surface and keeping weeds in
check. However, if plants seem to constantly dry out--in spite of your best
efforts--you may want to consider growing plants that can withstand dry
conditions. Using drought resistant plants may help reduce your water bill and
the time you spend working in the garden!
Characteristics of plants that normally are adapted to dry conditions include
thick fleshy leaves; very narrow leaves (such as those of many evergreen
species); and hairy, spiny, or waxy leaves. All of these are adaptations that
help reduce the amount of water lost from the leaves. Many drought tolerant
plants also have very deep root systems. Plants that originate in dry
environments also will have greater drought resistance.
Don't worry that your only choice will be cactus plants. For most landscaping
situations, many plants are available that tolerate dry conditions. Perennial
flowering plants that tolerate dry conditions include numerous herb species such
as lavender, artemisia, sage, and yarrow. Many varieties of these plants have
attractive, fragrant, silvery foliage in addition to colorful flowers that are
attractive to hummingbirds and butterflies. Sedum and species of coneflower,
liatris, and sunflowers do well in sunny dry locations.
Colorful annuals that thrive in sunny dry conditions include portulaca--a low
growing plant that reseeds itself and produces masses of flowers in nearly all
colors. Vinca, which has shiny leaves and flowers of white to pink to lavender,
works well as a border plant along hot sunny walkways. The brightly colored
California poppy also grows in dry soils.
Many grasses adapted to prairie conditions do well in dry locations and
provide habitat for birds. They serve as a landscaping focal point and can be
mixed with perennial flowers for contrast.
Shrubs that tolerate dry conditions include many species of junipers, some
species of cotoneaster, pyracantha, potentilla, and caragena. Many of these
shrubs have berries that are both attractive and provide food for wildlife.
A local nursery can recommend plants for dry sites in your area. There are
many locally adapted native plants that will withstand dry conditions and
enhance your landscape for wildlife.
For more information on wildlife habitat, water conservation,
and other Backyard Conservation practices, contact your local conservation
district or the Natural Resources Conservation Service. Or call 1-888-LANDCARE
(toll free) for a free colorful backyard Conservation booklet and tip sheets.
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