Soil Chemists Plant Ferns to Soak Up Backyard Poisons

This is an older video but I think it may provide some useful info to some as a source of cleaning up toxins in the area around homes.

Soil Chemists Plant Ferns to Soak Up Backyard Poisons

Planting ferns can be a cheaper, greener way to soak up poisons such as arsenic from the soil. Ferns absorb arsenic through their roots and store it in their leaves, which can then be cut off. Arsenic -- once used to treat wood -- can still lurk in old roofs, decks, and playgrounds.

Link to article and video:

http://www.sciencedaily.com/videos/2005/0804-danger_in_your_backyard.htm