Answer: Expect the majority of roots to be in the top 12 inches of soil and out as far as the branches originally were. Dig a trench all around the plant at the dripline and then dig down and towards the center of the plant. Then continue digging and prying beneath the root mass to free the plant. You can use long pry bars or even 2 x 4's to provide more leverage to pry up the root mass. It's important to get the entire root mass out or it will simply sprout up again. Good luck with your project!
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