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Plant Potatoes in Zone 4b

Seed-starting, transplant & harvest dates for USDA Zone 4b

Direct sow
Apr 21
Harvest (~90d)
Jul 20

In Zone 4b, 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 5
First fall frost
Sep 28
Growing season
146 days

Full Potatoes grow guide → · All crops for Zone 4b →

Frequently asked questions

When should I start potatoes in Zone 4b?

Direct sow outdoors around Apr 21.

Can I direct sow potatoes in Zone 4b?

Yes, direct sow around Apr 21.