Plant Spinach in Zone 3b
Seed-starting, transplant & harvest dates for USDA Zone 3b
Direct sow
Apr 8
Harvest (~45d)
May 23
In Zone 3b, the average last spring frost is around May. Spinach is a hardy crop, so sow it directly around the dates above.
Last spring frost
May 13
First fall frost
Sep 18
Growing season
128 days
Full Spinach grow guide → · All crops for Zone 3b →
Frequently asked questions
When should I start spinach in Zone 3b?
Direct sow outdoors around Apr 8.
Can I direct sow spinach in Zone 3b?
Yes, direct sow around Apr 8.