Planting Date · Broccoli
Broccoli Planting Date Calculator
Calculate the optimal planting dates for broccoli based on your USDA zone, last frost date, and preferred start method.
Optimal Soil Temp
50°F
Days to Maturity
65 days
Frost Tolerance
semi hardy
Planting Depth
1/4 inch
Input
Fill in the fields below, then click Calculate.
Select your USDA plant hardiness zone (3–10).
Approximate month of your last spring frost.
How you plan to start the crop.
No results yet
Fill in the fields and click Calculate to see results.
Tips & Best Practices
- Start seeds indoors 6–8 weeks before the last frost for a spring crop.
- Transplant seedlings 2–3 weeks before the last frost.
- Broccoli bolts in hot weather — time your crop to mature before summer heat.
- After harvesting the main head, many varieties produce smaller side shoots for weeks.