When should I plant Grønnkål in Zone 12b?

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

What is the last frost date for Zone 12b?

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

Can I grow Grønnkål in Zone 12b?

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

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🥬 Growing Grønnkål in Zone 12b

Zone 12b has a year-round growing season. Grønnkål can be planted almost any time with proper planning. Siste frost: Jan 1. Første frost: Dec 31.

Planting Calendar

Indoor

Outdoor

Harvest

Nov 20Dec 31

Season: Jan 1 – Dec 31 (364 dager)

Sone12b

Siste frostJan 1

Første frostDec 31

Sesong364 dager

Høst60 dager

SolHalvskygge

When to Plant Grønnkål in Zone 12b

Start Seeds Indoors: Nov 20

Start Grønnkål seeds indoors around Nov 20 (6 uker før siste frost). Optimal germination temperature: 65F. Germinates in 5-10 days.

Transplant Outdoors: Dec 4

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

Harvest: Jan 18

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

Fall Planting: Nov 5

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

Samdyrking

✅ Salvie ✅ Dill✅ Løk✅ Rødbeter✅ Poteter

❌ Jordbær

Grønnkål 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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