When should I plant Kool in Zone 10b?

Start Kool seeds indoors around Dec 17. Transplant outdoors after Jan 7. Expect first harvest around Mar 13.

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 Kool in Zone 10b?

Yes. Kool needs 80 days to harvest. Zone 10b has a 328-day growing season, which is sufficient.

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🥬 Kweken van Kool in Zone 10b

Zone 10b has a year-round growing season. Kool can be planted almost any time with proper planning. Laatste vorst: Jan 28. Eerste vorst: Dec 22.

Planting Calendar

Indoor

Outdoor

Harvest

Dec 17Dec 22

Season: Jan 28 – Dec 22 (328 dagen)

Zone10b

Laatste vorstJan 28

Eerste vorstDec 22

Seizoen328 dagen

Oogst80 dagen

ZonVolle Zon

When to Plant Kool in Zone 10b

Start Seeds Indoors: Dec 17

Start Kool seeds indoors around Dec 17 (6 weken voor de laatste vorst). Optimal germination temperature: 70F. Germinates in 5-10 days.

Transplant Outdoors: Jan 7

Transplant Kool seedlings outdoors after Jan 7. Wait until soil temperature reaches 45F. Space plants at 1/m² (30cm afstand). Harden off plants for a week before moving outside.

Harvest: Mar 13

First harvest approximately Mar 13 (~65 dagen from transplant). Continue harvesting until first frost (Dec 22).

Fall Planting: Sep 29

For a fall harvest, plant Kool around Sep 29 (12 weeks before first frost).

Begeleidende Beplanting

✅ Aardappels✅ Munt ✅ Dille✅ Uien✅ Selderij

❌ Bonen❌ Tomaten❌ Aardbeien

Kool in Andere 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 Je Tuin voor Kool

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

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