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🥦 Growing Broccoli in Zone 2a

Zone 2a has harsh winters and a short growing season. Start Broccoli early indoors to maximize your harvest window. Last frost: May 15. First frost: Sep 15.

Planting Calendar

Indoor

Outdoor

Harvest

Apr 3Sep 15

Season: May 15 – Sep 15 (123 days)

Zone2a

Last FrostMay 15

First FrostSep 15

Season Length123 days

Days to Harvest70

SunFull Sun

Frost ToleranceHeavy

Spacing1/sqft (12" apart)

When to Plant Broccoli in Zone 2a

Start Seeds Indoors: Apr 3

Start Broccoli seeds indoors around Apr 3 (6 weeks before last frost). Optimal germination temperature: 75°F. Germinates in 5–10 days.

Transplant Outdoors: May 29

Transplant Broccoli seedlings outdoors after May 29. Wait until soil temperature reaches 50°F. Space plants at 1/sqft (12" apart). Harden off plants for a week before moving outside.

Harvest: Jul 28

First harvest approximately Jul 28 (~60 days from transplant). Continue harvesting until first frost (Sep 15).

Fall Planting: Jun 23

For a fall harvest, plant Broccoli around Jun 23 (12 weeks before first frost).

Companion Planting

✅ Sage ✅ Rosemary ✅ Mint ✅ Chamomile ✅ Dill

❌ Strawberries❌ Tomatoes❌ Beans

Broccoli in Other Zones

1a 1b 2a 2b 3a 3b 4a 4b 5a 5b 6a 6b 7a 7b 8a 8b 9a 9b 10a 10b 11a 11b 12a 12b 13a 13b

Frequently Asked Questions

When should I plant Broccoli in Zone 2a?

Start Broccoli seeds indoors around Apr 3. Transplant outdoors after May 29. Expect first harvest around Jul 28.

What is the last frost date for Zone 2a?

The average last spring frost date for Zone 2a is May 15. The first fall frost averages Sep 15, giving a 123-day growing season.

Can I grow Broccoli in Zone 2a?

Yes. Broccoli needs 70 days to harvest. Zone 2a has a 123-day growing season, which is sufficient.

What is the best month to plant Broccoli in Zone 2a?

The best time to start Broccoli in Zone 2a is Apr. Begin seeds indoors around Apr 3, then transplant outdoors after the last frost date of May 15.

What companion plants grow well with Broccoli?

Good companion plants for Broccoli include Sage, Rosemary, Mint, Chamomile, Dill. Avoid planting Broccoli near Strawberries, Tomatoes, Beans.

How long does Broccoli take to harvest?

Broccoli takes approximately 70 days from planting to harvest. In Zone 2a, expect your first harvest around Jul 28.

Plan Your Broccoli Garden

Track Broccoli from seed to harvest with personalized frost dates, watering recommendations, and companion planting visualization.

Start Free Broccoli Growing Guide