It's amazing what they do. But I'd be weary of planting near urban areas. Both soil and water sources are very often heavily polluted with PCBs and other things

It's amazing what they do. But I'd be weary of planting near urban areas. Both soil and water sources are very often heavily polluted with PCBs and other things. In my city there's a club you pay a tiny monthly amount to get fruits delivered. And you can become a partner very easily.