The horizontal garden game was stepped up on the weekend when the largest green wall in North America was unveiled in Kennett Square, Pennsylvania. The fern-lined wall is located in the newly constructed East Conservatory Plaza at Longwood Gardens. At 4,072 square feet, it's more than twice the size of North America's second largest living wall (also in Pennsylvania).
Designed by GSky, the wall contains more than 47,000 plants that act as a sort of green lung for the new building. The facility, designed by Kim Wilkie Associates, is a public restroom, so the air-cleaning abilities of the green wall come in pretty handy.
Learn more about the project at Longwood's blog.