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🥬 Growing Kale in Zone 10b

Zone 10b has a year-round growing season. Kale can be planted almost any time with proper planning. Last frost: Jan 28. First frost: Dec 22.

Planting Calendar

Indoor

Outdoor

Harvest

Dec 17Dec 22

Season: Jan 28 – Dec 22 (328 days)

Zone10b

Last FrostJan 28

First FrostDec 22

Season Length328 days

Days to Harvest60

SunPart Sun / Part Shade

Frost ToleranceHeavy

Spacing1/sqft (12" apart)

When to Plant Kale in Zone 10b

Start Seeds Indoors: Dec 17

Start Kale seeds indoors around Dec 17 (6 weeks before last frost). Optimal germination temperature: 65°F. Germinates in 5–10 days.

Transplant Outdoors: Dec 31

Transplant Kale seedlings outdoors after Dec 31. Wait until soil temperature reaches 40°F. Space plants at 1/sqft (12" apart). Harden off plants for a week before moving outside.

Harvest: Feb 14

First harvest approximately Feb 14 (~45 days from transplant). Continue harvesting until first frost (Dec 22). Kale can overwinter in mild climates for continued harvest.

Fall Planting: Oct 27

For a fall harvest, plant Kale around Oct 27 (8 weeks before first frost).

Companion Planting

✅ Sage ✅ Dill✅ Onions✅ Beets✅ Potatoes

❌ Strawberries

Kale 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 Kale in Zone 10b?

Start Kale seeds indoors around Dec 17. Transplant outdoors after Dec 31. Expect first harvest around Feb 14.

What is the last frost date for Zone 10b?

The average last spring frost date for Zone 10b is Jan 28. The first fall frost averages Dec 22, giving a 328-day growing season.

Can I grow Kale in Zone 10b?

Yes. Kale needs 60 days to harvest. Zone 10b has a 328-day growing season, which is sufficient.

What is the best month to plant Kale in Zone 10b?

The best time to start Kale in Zone 10b is Dec. Begin seeds indoors around Dec 17, then transplant outdoors after the last frost date of Jan 28.

What companion plants grow well with Kale?

Good companion plants for Kale include Sage, Dill, Onions, Beets, Potatoes. Avoid planting Kale near Strawberries.

How long does Kale take to harvest?

Kale takes approximately 60 days from planting to harvest. In Zone 10b, expect your first harvest around Feb 14.

Plan Your Kale Garden

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

Start Free Kale Growing Guide