P. Allen Smith celebrates the summer season with a visit to the groundskeeper at Busch Stadium in St. Louis, Missouri, who shows us how to maintain a perfect lawn. Back home, Allen showcases the new summer foliage at Moss Mountain Farm, shares design tips using summer flowering bulbs, and how to grow beautiful dahlias. On the road again, Allen visits Grant Park in Chicago, where an urban beautification program is underway, where perfume is made from the oil of locally grown flowers. Allen shares the latest progress on the Garden Home Challenge.