Gardening expert P. Allen Smith reveals how some classic garden plants are getting "extreme makeovers" by plant breeders. Travel to Germany for a behind-the-scenes look at the work that goes into updating the look of geraniums. Then learn why bigger is better when it comes to the blossoms of shade loving impatiens. Tour plant farms in Holland to see how Dutch farmers are growing millions of garden plants for American gardens and meet a grower who has an interesting bulb for Allen to try in his own garden.