Plant Spinach in Zone 5b
Seed-starting, transplant & harvest dates for USDA Zone 5b
Direct sow
Mar 21
Harvest (~45d)
May 5
In Zone 5b, the average last spring frost is around April. Spinach is a hardy crop, so sow it directly around the dates above.
Last spring frost
Apr 25
First fall frost
Oct 8
Growing season
166 days
Full Spinach grow guide → · All crops for Zone 5b →
Frequently asked questions
When should I start spinach in Zone 5b?
Direct sow outdoors around Mar 21.
Can I direct sow spinach in Zone 5b?
Yes, direct sow around Mar 21.