Plant Broccoli in Zone 5a
Seed-starting, transplant & harvest dates for USDA Zone 5a
Start indoors
Mar 19
Transplant
Apr 16
Harvest (~65d)
Jun 20
In Zone 5a, the average last spring frost is around April. 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
Apr 30
First fall frost
Oct 3
Growing season
156 days
Full Broccoli grow guide → · All crops for Zone 5a →
Frequently asked questions
When should I start broccoli in Zone 5a?
Start broccoli seeds indoors around Mar 19 (Zone 5a).
Can I direct sow broccoli in Zone 5a?
Broccoli is best started indoors and transplanted in Zone 5a rather than direct sown.