I have the same problem in my last two houses. I thought the fine hairy roots belonged to a tree too but then the same roots are in my new garden with no tree near it. The clumps are so matted and tight it is near impossible to dig them out. Even worse if a pot plant sits on top of the soil the roots will grow upwards into the pot through the drainage holes and tightly pack out the entire pot plant and anchor it firmly to the ground. None of these roots grows anything green above the soil. I completely freed my garden of these roots but they grew back in no time just as dense as ever. Now I just let the lawn grow over it. I wish I knew what caused these hairy little roots and how to kill them.
Last edited by sanles; 02-06-2017 at 11:34 AM..
Reason: Spelling mistake