Description Burpee exclusive. Huge 5″ flowers, twice the size of other varieties Each packet contains 10 seeds Sow indoors 10 weeks before average last frost date using a Burpee seed starting kit. Transplant to the garden 4 weeks after the average last frost date Plant Height is 15″. plant spread is 10″. flowers are 5″ Annual for all growing zones from 1-11. Sunlight exposure = full-sun Find over 1000 Burpee vegetable, herb, and flower seeds on Amazon Get your seeds off to a great start with a Burpee Seed Starting Kit Burpee, the gardener’s best friend since 1876. Beautiful plants and everything else you need to grow the garden of your dreams from America’s most trusted seed company. No GMOs, ever.