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🥦 Growing Cauliflower in Zone 8b

Zone 8b has warm winters and an extended growing season — excellent for heat-loving crops like Cauliflower. Last frost: Mar 22. First frost: Nov 10.

Planting Calendar

Indoor

Outdoor

Harvest

Feb 8Nov 10

Season: Mar 22 – Nov 10 (233 days)

Zone8b

Last FrostMar 22

First FrostNov 10

Season Length233 days

Days to Harvest75

SunFull Sun

Frost ToleranceModerate

Spacing1/sqft (12" apart)

When to Plant Cauliflower in Zone 8b

Start Seeds Indoors: Feb 8

Start Cauliflower seeds indoors around Feb 8 (6 weeks before last frost). Optimal germination temperature: 70°F. Germinates in 5–10 days.

Transplant Outdoors: Mar 8

Transplant Cauliflower seedlings outdoors after Mar 8. Wait until soil temperature reaches 50°F. Space plants at 1/sqft (12" apart). Harden off plants for a week before moving outside.

Harvest: May 7

First harvest approximately May 7 (~60 days from transplant). Continue harvesting until first frost (Nov 10).

Fall Planting: Aug 18

For a fall harvest, plant Cauliflower around Aug 18 (12 weeks before first frost).

Companion Planting

✅ Spinach ✅ Celery ✅ Thyme✅ Beans

❌ Tomatoes❌ Strawberries❌ Peas

Cauliflower 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 Cauliflower in Zone 8b?

Start Cauliflower seeds indoors around Feb 8. Transplant outdoors after Mar 8. Expect first harvest around May 7.

What is the last frost date for Zone 8b?

The average last spring frost date for Zone 8b is Mar 22. The first fall frost averages Nov 10, giving a 233-day growing season.

Can I grow Cauliflower in Zone 8b?

Yes. Cauliflower needs 75 days to harvest. Zone 8b has a 233-day growing season, which is sufficient.

What is the best month to plant Cauliflower in Zone 8b?

The best time to start Cauliflower in Zone 8b is Feb. Begin seeds indoors around Feb 8, then transplant outdoors after the last frost date of Mar 22.

What companion plants grow well with Cauliflower?

Good companion plants for Cauliflower include Spinach, Celery, Thyme, Beans. Avoid planting Cauliflower near Tomatoes, Strawberries, Peas.

How long does Cauliflower take to harvest?

Cauliflower takes approximately 75 days from planting to harvest. In Zone 8b, expect your first harvest around May 7.

Plan Your Cauliflower Garden

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

Start Free Cauliflower Growing Guide