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  • When should trees be trimmed
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    When and How to Prune Trees Safely, Including Challenging Branches

    V-Shape Branching

    Some trees naturally form narrow, V-shape junctures. While these narrow branch arrangements sometimes weaken the tree's overall structure, not all require corrective pruning.

    Native elms, hornbeams, serviceberries, hickories, and Osage orange trees are generally strong enough or small enough that little corrective pruning is needed for structural purposes, except to remove crossing branches that might rub.

    Other trees, particularly maples, flowering pears, ashes, willows, and basswoods, should be watched closely and given early training to avoid structural problems as they grow larger. Narrow, V-shape junctures are inherently weak and can break off in wind or ice storms.

    When is the best time to trim trees and bushes

    To prevent V-shapes from causing problems, remove one of the stems while the tree is young.

    The following is a list of trees that tend to form V-shape junctures:

    • Basswoods (Tilia spp.)
    • Elm (Ulmus spp.)
    • Flowering pear (Pyrus calleryana)
    • Hackberry (Celtis spp.)
    • Hornbeam (Ostrya spp.

      and Carpinus

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