Dog Charlie and his Ginkgo tree

In a blog 'Growing Greener' by Daniel I read:
"This particular tree traveled 2000 miles in a small flowerpot, 5 years ago, from Chicago to Vancouver, Washington. It was planted in its present location in 2003, where it has flourished. The dogs use the area around it as their special 'bioremediation' area, so it may be overnourished, but it hasnt seemed to mind, and is reaching a size where it should become more resilient to the world's insults."
Read more here.