When to Plant Broccoli in Vermont
A nutrition powerhouse that thrives in cool weather. Harvest the main head, then enjoy weeks of side shoots.
The Short Answer
Vermont Frost Dates
Your planting dates depend on which part of Vermont you're in. Here are the frost date ranges by region:
| Region | Zones | Last Frost (Spring) | First Frost (Fall) |
|---|---|---|---|
| Northern Vermont | 3b, 4a | May 20 - Jun 5 | Sep 5 - Sep 20 |
| Central Vermont | 4a, 4b, 5a | May 10 - May 25 | Sep 15 - Oct 1 |
| Southern Vermont | 4b, 5a, 5b | May 5 - May 20 | Sep 20 - Oct 5 |
Broccoli Planting Schedule for Vermont
Northern Vermont (Zones 3b, 4a)
Average last frost: May 20 - Jun 5 · Average first frost: Sep 5 - Sep 20
Central Vermont (Zones 4a, 4b, 5a)
Average last frost: May 10 - May 25 · Average first frost: Sep 15 - Oct 1
Southern Vermont (Zones 4b, 5a, 5b)
Average last frost: May 5 - May 20 · Average first frost: Sep 20 - Oct 5
Growing Broccoli in Vermont
Broccoli in Vermont's Climate
Broccoli thrives in your cool climate. Spring planting works well — transplant 2-3 weeks before last frost. Unlike warmer regions where heat causes premature bolting, your moderate summer temperatures often allow extended broccoli harvests. Fall broccoli is equally productive. Northern Michigan, Minnesota, and Wisconsin can even grow broccoli through summer in cooler years.
Soil Considerations for Vermont
Rocky, acidic soils typical of New England. Glacial deposits. Thin mountain soils. Raised beds very popular.
Vermont Climate & Growing Season
Short growing season. Cold winters. Cool summers. Long summer days help compensate. Season extension techniques valuable. Broccoli can handle frost well, which is an advantage in Vermont's climate. You can push planting dates earlier in spring and extend into fall.
Growing season length varies across Vermont: Northern Vermont (3b, 4a) has a last frost around May 20 - Jun 5, while Southern Vermont (4b, 5a, 5b) sees frost end around May 5 - May 20. This difference matters for broccoli — but broccoli handle frost well, so the timing difference is less critical.
Growing Tips
Harvest main head while buds are tight. Side shoots will continue producing for weeks after the main harvest.
Companion Planting
Plant broccoli alongside these companions for better growth:
Keep broccoli away from:
The Bottom Line
Last reviewed: March 29, 2026