Root Flare
The root flare is an important part of the tree. This is the area of the trunk at the base of the tree where the trunk flares out to the roots. It is important not to cover this flare with soil or mulch, as it is the gas-exchange point for the tree. Covering this area can suffocate the tree and/or rot the bark at the base of the tree, leaving it susceptible to disease and snapping. This is why you will commonly see mulch rings with a donut-type hole in the center to allow the flare to breathe. In order for trees to grow larger, lower and inner branches must be trimmed annually. The best time of year to trim is in cooler months. Consult a professional for best results.
Tree Edging
For the health of the tree, it is best not to use stone or brick edging around the tree. These can cause the following:
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A bowl that could flood and drown the tree
Increases weight on roots
Added soil covers the root flare which suffocates the tree
Roots start to circle the tree causing girdling
The tree’s growing roots will cause the edging to lift and break.
If you desire stone around your tree, try a dry stack version without mortar that is only one brick or stone high so that it doesn’t cause damage and can be adjusted as the tree grows.
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