Plant Corn in Zone 9a
Seed-starting, transplant & harvest dates for USDA Zone 9a
Direct sow
Mar 8
Harvest (~75d)
May 22
In Zone 9a, the average last spring frost is around March. Corn is a tender crop, so sow it directly around the dates above.
Last spring frost
Mar 1
First fall frost
Nov 30
Growing season
274 days
Full Corn grow guide → · All crops for Zone 9a →
Frequently asked questions
When should I start corn in Zone 9a?
Direct sow outdoors around Mar 8.
Can I direct sow corn in Zone 9a?
Yes, direct sow around Mar 8.