Answer: The easiest, but most expensive option is to hire a professional with a stump grinder to remove the stumps left after you've removed the vegetation. Or, a local landscaper might be able to tackle the job with a backhoe or small tractor. You can usually get free estimates along with free advise. Techniques can differ depending upon the site in question and the amount of vegetation involved. If you'd rather do it yourself, you can sometimes burn the stumps out but you'll need a permit to burn and the stump can smolder for days - sometimes even weeks - depending upon its size. I would invest the money in having the stumps and the roots professionally removed. If the job is not done completely, you'll have little sprouts popping up all over from the buried roots and that can really be frustrating when you're trying to build a garden.
Best wishes with your new landscape!
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