Cool-Season Vegetable

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

Broccoli are cold-tolerant and do well in Vermont's varied climate. You can direct sow 4 weeks before your last frost — that's as early as May 20 - Jun 5 in Northern Vermont. Vermont gardeners can also plant a fall crop. Rocky, acidic soils typical of New England. Glacial deposits. Thin mountain soils. Raised beds very...

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

Start Seeds Indoors
6 wks before frost
Transplant Outside
2 wks before frost
Direct Sow
4 wks before frost
Fall Planting
10 wks before first frost

Central Vermont (Zones 4a, 4b, 5a)

Average last frost: May 10 - May 25 · Average first frost: Sep 15 - Oct 1

Start Seeds Indoors
6 wks before frost
Transplant Outside
2 wks before frost
Direct Sow
4 wks before frost
Fall Planting
10 wks before first frost

Southern Vermont (Zones 4b, 5a, 5b)

Average last frost: May 5 - May 20 · Average first frost: Sep 20 - Oct 5

Start Seeds Indoors
6 wks before frost
Transplant Outside
2 wks before frost
Direct Sow
4 wks before frost
Fall Planting
10 wks before first frost

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:

Beets Celery Onions Potatoes

Keep broccoli away from:

Tomatoes Peppers Strawberries

The Bottom Line

Broccoli can be grown successfully across Vermont, but your exact planting dates depend on which region you're in. Northern Vermont gardeners should plan around a May 20 - Jun 5 last frost, while those in Southern Vermont can typically plant earlier. For exact dates based on your zip code, use our free planting date finder.
Note: All dates are based on NOAA 30-year Climate Normals and represent historical averages, not predictions for any specific year. Always check your local weather forecast before planting frost-sensitive crops. Learn about our data sources.

Last reviewed: March 29, 2026

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