This Feb. 28, 2013 photo shows a many roses in a Schaffer Designs installation titled "Jack," as preparations are made for annual Philadelphia Flower Show at the Pennsylvania Convention

 

              This Feb. 28, 2013 photo shows a many roses in a Schaffer Designs installation titled "Jack," as preparations are made for annual Philadelphia Flower Show at the Pennsylvania Convention
This Feb. 28, 2013 photo shows a many roses in a Schaffer Designs installation titled "Jack," as preparations are made for annual Philadelphia Flower Show at the Pennsylvania Convention Center in Philadelphia. More than 270,000 people are expected to converge on the Pennsylvania Convention Center for the event, which runs through March 10. Billed as the world's largest indoor flower show, it's also one of the oldest, dating back to 1829. (AP Photo/Matt Rourke)