Sun to part shade; Average to dry well drained soil; This is a nice neat small sunflower for a dry sunny garden. Usually growing between 2-4' tall with broad leaves (mostly at the base of the plant) like the annual sunflower and largish 2-3" sunflowers in the summer. this sunflower has a slowly creeping rhizome which can form a large patch over time. blooms August-September; Zone 4-8; WV ecotype. // Seed packet, about 50 seeds. Germination requirements: 60 days cold, moist stratification.