Saturday, May 19, 2012
How to get rid of rising tree roots?
As a tree gets older we see more and more roots rising to the surface. Most folks are not aware that tree roots NEED OXYGEN. Air molecules or macro pores in the soil are essential for healthy trees. Heavy clay soil with water saturation guarantees root rise.
If planting in heavy clay soil, one help is to do radial trenching (three trenches extending from the root ball back filled with rock, mulch and existing soil to give roots a path and to create a drainage from the root ball. Grass will like this too so it will often be greener down the trench area. The important factor is to plant the tree mounded up so the ball is not deep down in the planting hole and the root flare is definitely above the planting level. Try to plant where the tree is not in a low spot in the yard where lawn sprinklers flood the roots.
In an example like the photo above, your best bet is to simply create a tree well (or even a new planting bed) the size of the exposed roots - covered in mulch, then plant shrubs and flowers that tolerate shade in that area. You can put sand and soil mix over the roots and replant grass however the roots over time will continue to rise.
Here is a good university link on Tree Root issues http://www.hort.purdue.edu/ext/treeroots.html
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