Balloon flower (Platycodon) is a super star in my garden. The unopened blossoms resemble a delicate, inflated balloon. Slow to wake from winter dormancy, I have to keep an eye out for its tender shoots during spring cleanup, but, boy, once it gets going it never stops. In autumn the foliage turns an incredible lemon yellow and the flowers give way to interesting seedpods. I grow both blue and white balloon flowers. I’ve tried the pink one, but the flowers were so pale they looked more like a dirty white, so I gave up on it. The blues look good with pink or white summer phlox as well as with daylilies. My white ones are an excellent contrast to variegated miscanthus grass and bronze fennel. Balloon flower is a long-lived and loyal perennial. My clumps return each year larger than the season before.