by Rachel Logterman

Created on: April 30, 2008

A Tree is an Investment
When looking to invest, it is always good to know what you are getting. Shopping for a good quality tree is important, and knowing the signs of a healthy tree will help you select one that will thrive for years to come.

What "Normal" Means
The first step to recognize a healthy tree is to understand what is normal for that tree. Refer to a representative picture from a book or website, with examples by season. Then check each part of the tree, and know what to look for at different times of the year.

What to Look for During the Growing Season

Bright Clean Foliage: A healthy tree should have leaves of normal size and shape, firm but flexible, and not wilted. Color should be normal for the season and type of tree. Trees often have different colored leaves in spring, summer and fall. For example, some crabapples have leaves that are reddish in spring, dark green in summer, and yellow in fall.

Pest and Disease Free: Look for damage from insects or diseases (or the insects themselves) on both sides of the leaves. Watch for bite marks, holes, brown spots or edges, curling, or distortion. Many organisms do not harm the tree, but it is best to check for harmful ones.

New Growth: If a tree is healthy, new growth should be visible on the ends of the branches. Branches will be greener and softer than the older branches, and new leaves will be smaller and possibly a different shade of green. You may also see a fat leaf or flower bud about to open.

Balance Roots and Canopy: Trees need a balance between their root system and tops. If the top has excessive growth compared to the size of the root system, it means the tree may have been over-stimulated with fertilizer. This tree will need extra care, with constant watering so the small root system can supply enough water to the top. Without enough water, the tree may drop some leaves or stop growing for a period of time.

Well-Developed Root System: Avoid disturbing the root system as much as possible. Be sure to check the moisture of both containers and balled and burlap to make sure the tree has been cared for properly and not dried out. Root systems are very vulnerable to the elements when above ground. When you are shopping at big box' stores it is very important to look at the roots;, they can overheat easily if stored on asphalt.

At a nursery or garden center, you may ask to inspect a container tree's roots. If the tree can be pulled a bit out of the pot, look for roots that are firm and light in color. The

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