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razorbladetherapy
10-28-2004, 09:18 PM
Trees and shrubs come in all shapes and sizes. How you select your trees and shrubs and how you plant them will directly affect your home's comfort and energy efficiency.
Trees and shrubs have a life span of many years and can become more attractive and functional with age. But poor planning of landscape improvements often creates trouble. Ensure proper plant placement and minimal maintenance before you plant!

Shape Characteristics

Tree shapes are very diverse think of the difference in shape between an oak and a spruce. The "Shading" section under "Climate, Site, and Design Considerations" above discusses how to use varying tree and shrub characteristics to maximum advantage when landscaping.

The density of a tree's leaves or needles is important to consider. Dense evergreens, like spruces, make great wind- breaks for winter winds. If you are just looking to impede summer winds, choose a tree or shrub with more open branches and leaves. Such trees are also good for filtering morning sun from the east, while denser trees are better for blocking harsh afternoon summer sun.

Growth

Should you plant slow-growing or fast-growing tree species? Although a slow-growing tree may require many years of growth before it shades your roof, it will generally live longer than a fast-growing tree. Also, because slow-growing trees often have deeper roots and stronger branches, they are less prone to breakage by windstorms or heavy snow loads. And they can be more drought resistant than fast-growing trees.

Consider growth rate, strength, and brittleness when locating trees near walkways or structures. Ask whether the mature tree s root system is likely to damage sidewalks, foundations, or sewer lines. The smaller your yard, the more important it is to select a tree with manageable roots.

Selecting, Final Planning, and Purchasing

Landscape professionals can help you choose and locate new trees, shrubs, or ground cover.

Share your drawings and tentative ideas with your local nursery or landscape contractor. As long as you have defined intended uses and spaces in which planting is actually possible, a competent nursery or landscape specialist will be able to help you make decisions.

When planting trees, shrubs, hedges, or bushes, find out how large the mature specimen will grow. In all cases, determine spacing by the mature sizes. For those plants close to your house, plan for at least 1 foot (30 centimeters) of extra clearance between the full-grown shrub and the wall of the home. This will prevent heavy pruning or damage to home siding in the future.

After considering the placement of your trees and consulting landscaping and nursery professionals, go back to your drawings or plans and add the new information on species, shape, and mature-size spacing. This provides a final, prepurchase review to make sure that all elements will work well together -- in the short and long term.

When you are ready to purchase your trees and shrubs, avoid buying damaged specimens. Thoroughly inspect the bark, limbs, and roots to make sure the plant was handled carefully during growing, digging, and shipping. Reject plant stock with signs of insects or disease (cocoons, egg masses, cankers, or lesions).

After you purchase the plants, be sure to keep tiny root hairs damp and shaded at all times. The plants will not survive if these root hairs are allowed to dry before planting.

Contact your public libraries, local nurseries, landscape architects, landscape contractors, and state and local energy offices for additional information on regionally appropriate plants and their maintenance requirements.