Balloon Flowers are summer-blooming cousins to the more familiar Bellflowers. Plants form a mound of green foliage, bearing inflated buds that open into star-shaped white blossoms. This medium-height selection is great for the border, or in mixed containers. Especially good for cutting. Because they come up very late in the spring, consider planting tulips or daffodils beside the clump to mark the location.
Division is seldom necessary, and not always very successful because of the carrot-like root.