UC Master Gardeners, Santa Clara County, CA
University of California
UC Master Gardeners, Santa Clara County, CA

Monthly Tip

Trees Planted Too Deeply

Tip description

The root flare should show at the soil line. Left by David Snow, Michigan Extension, right by Sarah Browning, Nebraska Extension
The root flare should show at the soil line. Left by David Snow, Michigan Extension, right by Sarah Browning, Nebraska Extension
When you plant a tree or shrub, look for the root flare; it’s the point at the base of the trunk where the roots start. The soil should be at that level when you put the plant into the ground (or even into a new pot). Planting too deep can prevent the roots from getting the oxygen they need or cause the bark to deteriorate at ground level. Either can stunt plant growth, resulting in branch dieback or causing bark cracking. Don’t assume a container plant is at the correct level; you may need to remove soil to find the root flare.

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