Plant Onions in Zone 13a
Seed-starting, transplant & harvest dates for USDA Zone 13a
Direct sow
Feb 1
Harvest (~100d)
May 12
In Zone 13a, the average last spring frost is around year-round. Onions is a hardy crop, so sow it directly around the dates above.
Last spring frost
Frost-free
First fall frost
Frost-free
Growing season
365 days
Full Onions grow guide → · All crops for Zone 13a →
Frequently asked questions
When should I start onions in Zone 13a?
Direct sow outdoors around Feb 1.
Can I direct sow onions in Zone 13a?
Yes, direct sow around Feb 1.