When should I plant Broccoli in Zone 11b?

Start Broccoli seeds indoors around Dec 4. Transplant outdoors after Jan 29. Expect first harvest around Mar 30.

What is the last frost date for Zone 11b?

The average last spring frost date for Zone 11b is Jan 15. The first fall frost averages Dec 31, giving a 350-day growing season.

Can I grow Broccoli in Zone 11b?

Yes. Broccoli needs 70 days to harvest. Zone 11b has a 350-day growing season, which is sufficient.

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🥦 Growing Broccoli in Zone 11b

Zone 11b has a year-round growing season. Broccoli can be planted almost any time with proper planning. Last frost: Jan 15. First frost: Dec 31.

Planting Calendar

Indoor

Outdoor

Harvest

Dec 4Dec 31

Season: Jan 15 – Dec 31 (350 days)

Zone11b

Last FrostJan 15

First FrostDec 31

Season Length350 days

Days to Harvest70

SunFull Sun

Frost ToleranceHeavy

Spacing1/sqft (12" apart)

When to Plant Broccoli in Zone 11b

Start Seeds Indoors: Dec 4

Start Broccoli seeds indoors around Dec 4 (6 weeks before last frost). Optimal germination temperature: 75°F. Germinates in 5–10 days.

Transplant Outdoors: Jan 29

Transplant Broccoli seedlings outdoors after Jan 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: Mar 30

First harvest approximately Mar 30 (~60 days from transplant). Continue harvesting until first frost (Dec 31).

Fall Planting: Oct 8

For a fall harvest, plant Broccoli around Oct 8 (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

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