When should I plant Grönkål in Zone 12a?

Start Grönkål seeds indoors around Nov 20. Transplant outdoors after Dec 4. Expect first harvest around Jan 18.

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 Grönkål in Zone 12a?

Yes. Grönkål needs 60 days to harvest. Zone 12a has a 364-day growing season, which is sufficient.

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🥬 Growing Grönkål in Zone 12a

Zone 12a has a year-round growing season. Grönkål can be planted almost any time with proper planning. Sista frost: Jan 1. Första frost: Dec 31.

Planting Calendar

Indoor

Outdoor

Harvest

Nov 20Dec 31

Season: Jan 1 – Dec 31 (364 dagar)

Zon12a

Sista frostJan 1

Första frostDec 31

Säsong364 dagar

Skörd60 dagar

SolHalvskugga

When to Plant Grönkål in Zone 12a

Start Seeds Indoors: Nov 20

Start Grönkål seeds indoors around Nov 20 (6 veckor före sista frosten). Optimal germination temperature: 65F. Germinates in 5-10 days.

Transplant Outdoors: Dec 4

Transplant Grönkål seedlings outdoors after Dec 4. Wait until soil temperature reaches 40F. Space plants at 1/m² (30cm avstånd). Harden off plants for a week before moving outside.

Harvest: Jan 18

First harvest approximately Jan 18 (~45 dagar from transplant). Continue harvesting until first frost (Dec 31). Grönkål can overwinter in mild climates for continued harvest.

Fall Planting: Nov 5

For a fall harvest, plant Grönkål around Nov 5 (8 weeks before first frost).

Samplantering

✅ Salvia ✅ Dill✅ Lökar✅ Rödbetor✅ Potatisar

❌ Jordgubbar

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

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