When should I plant Cabbage in Zone 9a?

Start Cabbage seeds indoors around Feb 6. Transplant outdoors after Feb 27. Expect first harvest around May 3.

What is the last frost date for Zone 9a?

The average last spring frost date for Zone 9a is Mar 20. The first fall frost averages Nov 12, giving a 237-day growing season.

Can I grow Cabbage in Zone 9a?

Yes. Cabbage needs 80 days to harvest. Zone 9a has a 237-day growing season, which is sufficient.

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🥬 Growing Cabbage in Zone 9a

Zone 9a has warm winters and an extended growing season — excellent for heat-loving crops like Cabbage. Last frost: Mar 20. First frost: Nov 12.

Planting Calendar

Indoor

Outdoor

Harvest

Feb 6Nov 12

Season: Mar 20 – Nov 12 (237 days)

Zone9a

Last FrostMar 20

First FrostNov 12

Season Length237 days

Days to Harvest80

SunFull Sun

Frost ToleranceModerate

Spacing1/sqft (12" apart)

When to Plant Cabbage in Zone 9a

Start Seeds Indoors: Feb 6

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

Transplant Outdoors: Feb 27

Transplant Cabbage seedlings outdoors after Feb 27. Wait until soil temperature reaches 45°F. Space plants at 1/sqft (12" apart). Harden off plants for a week before moving outside.

Harvest: May 3

First harvest approximately May 3 (~65 days from transplant). Continue harvesting until first frost (Nov 12).

Fall Planting: Aug 20

For a fall harvest, plant Cabbage around Aug 20 (12 weeks before first frost).

Companion Planting

✅ Potatoes✅ Mint ✅ Dill✅ Onions✅ Celery

❌ Beans❌ Tomatoes❌ Strawberries

Cabbage 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

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

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