Plant Potatoes in Zone 3b
Seed-starting, transplant & harvest dates for USDA Zone 3b
Direct sow
Apr 29
Harvest (~90d)
Jul 28
In Zone 3b, the average last spring frost is around May. Potatoes is a half-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 Potatoes grow guide → · All crops for Zone 3b →
Frequently asked questions
When should I start potatoes in Zone 3b?
Direct sow outdoors around Apr 29.
Can I direct sow potatoes in Zone 3b?
Yes, direct sow around Apr 29.