When should I plant Kool in Zone 12a?

Start Kool seeds indoors around Nov 20. Transplant outdoors after Dec 11. Expect first harvest around Feb 14.

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 Kool in Zone 12a?

Yes. Kool needs 80 days to harvest. Zone 12a has a 364-day growing season, which is sufficient.

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🥬 Kweken van Kool in Zone 12a

Zone 12a has a year-round growing season. Kool can be planted almost any time with proper planning. Laatste vorst: Jan 1. Eerste vorst: Dec 31.

Planting Calendar

Indoor

Outdoor

Harvest

Nov 20Dec 31

Season: Jan 1 – Dec 31 (364 dagen)

Zone12a

Laatste vorstJan 1

Eerste vorstDec 31

Seizoen364 dagen

Oogst80 dagen

ZonVolle Zon

When to Plant Kool in Zone 12a

Start Seeds Indoors: Nov 20

Start Kool seeds indoors around Nov 20 (6 weken voor de laatste vorst). Optimal germination temperature: 70F. Germinates in 5-10 days.

Transplant Outdoors: Dec 11

Transplant Kool seedlings outdoors after Dec 11. Wait until soil temperature reaches 45F. Space plants at 1/m² (30cm afstand). Harden off plants for a week before moving outside.

Harvest: Feb 14

First harvest approximately Feb 14 (~65 dagen from transplant). Continue harvesting until first frost (Dec 31).

Fall Planting: Oct 8

For a fall harvest, plant Kool around Oct 8 (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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