Plant Sunflowers in Zone 7a
Seed-starting, transplant & harvest dates for USDA Zone 7a
Direct sow
Apr 17
Harvest (~80d)
Jul 6
In Zone 7a, the average last spring frost is around April. Sunflowers is a half-hardy crop, so sow it directly around the dates above.
Last spring frost
Apr 10
First fall frost
Oct 25
Growing season
198 days
Full Sunflowers grow guide → · All crops for Zone 7a →
Frequently asked questions
When should I start sunflowers in Zone 7a?
Direct sow outdoors around Apr 17.
Can I direct sow sunflowers in Zone 7a?
Yes, direct sow around Apr 17.