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First determine the height of tree you need. Many tree species have varieties that mature to different heights. Then choose the tree variety that best matches your height requirement.

Many tree species have varieties that mature to different heights.

Next, inspect the roots. Avoid trees in pots where the roots circle the trunk or container. Roots growing from the container indicate the tree has been left in the container too long and is root bound.

Avoid trees in pots where the roots circle the trunk or container. Roots growing from the container indicate the tree has been left in the container too long and is root bound.

Look at the holes on the bottom of the pot. See any roots? If so, move on.

Also, spilt containers indicate the tree has been left in the container too long and is root bound.

And if the tree resembles a lollipop, with nearly all branches removed, pass on it. These grow slowly or suffer sun-scald, not to mention they’re rather unattractive.

Trees that are too tall without the appropriate sized root ball or container will likely dieback when planted or else may not survive.

Although multi-trunks are acceptable for shrubs, one single trunk per tree is preferred.

Other flaws to be on the lookout for: scrapes, sunken areas or cuts on the trunks or main branches.

Both Monterrey oak (Quercus polymopha) and possumhaw holly (Ilex decidua), on the right, are perfect examples of what to look for in a nursery tree — single trunk, branches extending almost to the bottom, no girdling roots, no exposed roots, no trunk wounds and a container appropriate in size to the tree height.

This is a perfect nursery specimen shade tree in a container.

This a perfect nursery specimen understory or small tree in a container.

Even a cat knows when he sees a perfect tree. This possumhaw is cat approved!