How to Grow Balloon Flowers From Seed. Start seeds indoors in the early spring about six to eight weeks before your area's projected last frost date, using seed starter mix or ordinary potting soil. Barely cover the seeds with 1/16 inch of soil. Place the container in a warm location until the seeds germinate.

grandiflorus 'Fuji Blue' generally tops out at 18 to 24 inches tall with a spread of 12 to 18 inches. The flowers have a single row of deep blue petals, and measure between two and two and a half inches across. Well-suited to mid-bed placements, this type may require staking. 'Fuji Blue' may also produce double blooms.

Store the seeds in a cool, dark and dry place such as a root cellar or basement. They can be kept until the next spring or even for several years after. Plant when frost danger is past in the spring. Do not deadhead your balloon plants throughout the summer or fall if you want to collect seeds.. . . . .364011235242!]