Growing Bok Choy in Zone 12a

Zone 12a has a year-round growing season. Bok Choy can be planted almost any time with proper planning. Last frost: Jan 1. First frost: Dec 31.

Planting Calendar

Indoor

Outdoor

Harvest

Nov 20Dec 31

Season: Jan 1 – Dec 31 (364 days) · Succession: plant every 2 weeks (up to 22x)

Zone12a

Last FrostJan 1

First FrostDec 31

Season Length364 days

Days to Harvest45

SunPart Sun / Part Shade

Frost ToleranceModerate

Spacing4/sqft (6" apart)

When to Plant Bok Choy in Zone 12a

Start Seeds Indoors: Nov 20

Start Bok Choy seeds indoors around Nov 20 (6 weeks before last frost). Optimal germination temperature: 65°F. Germinates in 4–8 days.

Transplant Outdoors: Dec 25

Transplant Bok Choy seedlings outdoors after Dec 25. Wait until soil temperature reaches 45°F. Space plants at 4/sqft (6" apart). Harden off plants for a week before moving outside.

Harvest: Jan 29

First harvest approximately Jan 29 (~35 days from transplant). Continue harvesting until first frost (Dec 31).

Fall Planting: Nov 12

For a fall harvest, plant Bok Choy around Nov 12 (7 weeks before first frost).

Companion Planting

✅ Carrots✅ Beets✅ Dill✅ Onions✅ Beans

❌ Strawberries

Bok Choy 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 Bok Choy in Zone 12a?

Start Bok Choy seeds indoors around Nov 20. Transplant outdoors after Dec 25. Expect first harvest around Jan 29.

What is the last frost date for Zone 12a?

The average last spring frost date for Zone 12a is Jan 1. The first fall frost averages Dec 31, giving a 364-day growing season.

Can I grow Bok Choy in Zone 12a?

Yes. Bok Choy needs 45 days to harvest. Zone 12a has a 364-day growing season, which is sufficient. You can plant up to 22 successions.

What is the best month to plant Bok Choy in Zone 12a?

The best time to start Bok Choy in Zone 12a is Nov. Begin seeds indoors around Nov 20, then transplant outdoors after the last frost date of Jan 1.

What companion plants grow well with Bok Choy?

Good companion plants for Bok Choy include Carrots, Beets, Dill, Onions, Beans. Avoid planting Bok Choy near Strawberries.

How long does Bok Choy take to harvest?

Bok Choy takes approximately 45 days from planting to harvest. In Zone 12a, expect your first harvest around Jan 29.

Plan Your Bok Choy Garden

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

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