COTTONWOOD TREES WITH ABOVE GROUND EXTENDING ROOTS/LIMBS : WHAT TO PLANT TO IMPROVE LOOKS OF YARD AROUND THESE ABOVE GROUND LIMBS?

Question

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Answer 1

The best thing you can do is cover them with a couple inches of hardwood mulch. Trying to plant among the roots will only damage the root system. Many of a tree's feeder roots are within the top 12 inches of the ground.

Here is more:

https://www.gardeningknowhow.com/ornamental/flowers/fgen/gardening-around-tree-roots.htm