Plant Broccoli in Zone 3a
Seed-starting, transplant & harvest dates for USDA Zone 3a
Start indoors
Apr 3
Transplant
May 1
Harvest (~65d)
Jul 5
In Zone 3a, the average last spring frost is around May. Broccoli is a half-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 15
First fall frost
Sep 15
Growing season
123 days
Full Broccoli grow guide → · All crops for Zone 3a →
Frequently asked questions
When should I start broccoli in Zone 3a?
Start broccoli seeds indoors around Apr 3 (Zone 3a).
Can I direct sow broccoli in Zone 3a?
Broccoli is best started indoors and transplanted in Zone 3a rather than direct sown.