Plant Kale in Zone 4a
Seed-starting, transplant & harvest dates for USDA Zone 4a
Start indoors
Mar 29
Transplant
Apr 26
Direct sow
Apr 19
Harvest (~60d)
Jun 25
In Zone 4a, the average last spring frost is around May. Kale is a hardy crop, so give it a head start indoors about 6 weeks before that, then move it out after frost danger passes.
Last spring frost
May 10
First fall frost
Sep 22
Growing season
135 days
Full Kale grow guide → · All crops for Zone 4a →
Frequently asked questions
When should I start kale in Zone 4a?
Start kale seeds indoors around Mar 29 (Zone 4a).
Can I direct sow kale in Zone 4a?
Yes, direct sow around Apr 19.