70 days. 3-5 in. flowers in light fall colors. The poly-headed 5-7 ft. stalks may require staking once the seed heads have formed. Excellent tall screen, cut flower, and food source for self-feeding small birds. 
 
Small (7 g) packet has about 70 seeds.
 
Helianthus annuus unless otherwise noted.

How to grow: 
Annual. Germination: 14 days, 70 degrees F. Full sun. Direct sow in May or June. Space 12-18” apart. Taller varieties may need staking. Early in the growth stage, place a pole at the base of the stalk. As the stem grows, use twine or soft ties to secure it to the stake every 6’ or so.
 
History:
Some archaeologists believe that Native Americans may have cultivated sunflowers as early as 3000 B.C.
 
Uses: You can leave any remaining seed-heads in the garden for fall and winter visitors. Or you can cut and dry the seed-heads indoors. Throughout the winter months, tie dried heads to fences or to your deck or suspend in trees to feed birds.