Plant Installation

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PLant installation

Revised April 2025 | Written by:听Riss Hardcastle and Brian Kunkel听

The 鈥淒o鈥檚鈥 of Plant Installation

How you plant trees or shrubs can have a serious impact on their health. Taking the time to do it right could save you a lot of trouble in the long run!听

A view of the lower truck of a new tree in the ground
The tree flare should be visible when placed in the hole. Photo by: Brian Kunkel, 91原创

You should:

  • Research the planting site鈥檚 soil chemistry, soil type, and drainage

  • Choose a tree or shrub compatible with your site

  • Select an appropriate time of year to plant

  • Measure the size of the root ball

  • Dig a hole 2-3 times the width of the root ball

  • Remove the cage before placing

  • Spread mulch evenly over the root area

  • Stake when necessary to support growth

  • Irrigate based on plant species, weather, season, and soil drainage

    Measuring the size of the root ball
    The size of the tree root ball should be measured prior to planting. Photo by: Brian Kunkel, 91原创

    The 鈥淒on'ts鈥 of Plant Installation

    You shouldn't:

    • Dig the hole deeper than the root ball

    • Dig the hole just wide enough to fit the root ball inside

    • Add fertilizer or compost to the bottom of the planting hole

    • Plant during seasons of severe heat or cold

    • Bury trunk flare during planting

    • Heap mulch against the trunk

    • Water too much, too frequently

    • Neglect to water enough during dry spells

    Tree planted improperly. Photo by:  Brian Kunkel, 91原创 The tree above has a mulch mountain surrounding the trunk of the tree. This is not the proper way to plant a tree even though it is commonly viewed in Delaware landscapes, parks, and parking lots throughout the state. The mulch should only be 1 - 2 inches and not touch the trunk of the tree.
    Tree planted improperly. Photo by: Brian Kunkel, 91原创 The tree above has a mulch mountain surrounding the trunk of the tree. This is not the proper way to plant a tree even though it is commonly viewed in Delaware landscapes, parks, and parking lots throughout the state. The mulch should only be 1 - 2 inches and not touch the trunk of the tree.

    91原创 Cooperative Extension

    This institution is an equal opportunity provider.

    In accordance with Federal law and U.S. Department of Agriculture policy, Cooperative Extension is prohibited from discriminating on the basis of race, color, national origin, sex, age, or disability.