Homegrown offers 50 percent more garden fun this week with discussions on junk plants, hardiness zones, and the
Philadelphia Flower Show. Bob and Jeneen give the lowdown on some “sucker plants” you don’t want to buy, garden guru Tony Avent explains revisions to the hardiness zone maps, and Philadelphia Flower Show designer Sam Lemheney talks about the 2008 show - the largest indoor flower show in the world.See Bob Hill's photos of the 2008 Philadelphia Flower ShowFind out more: