When should I plant Kål in Zone 4b?

Start Kål seeds indoors around Mar 20. Transplant outdoors after Apr 10. Expect first harvest around Jun 14.

What is the last frost date for Zone 4b?

The average last spring frost date for Zone 4b is May 1. The first fall frost averages Oct 5, giving a 157-day growing season.

Can I grow Kål in Zone 4b?

Yes. Kål needs 80 days to harvest. Zone 4b has a 157-day growing season, which is sufficient.

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🥬 Growing Kål in Zone 4b

Zone 4b has cold winters and a moderate growing season. Timing is key for Kål in this zone. Sidste frost: May 1. Første frost: Oct 5.

Planting Calendar

Indoor

Outdoor

Harvest

Mar 20Oct 5

Season: May 1 – Oct 5 (157 dage)

Zone4b

Sidste frostMay 1

Første frostOct 5

Sæson157 dage

Høst80 dage

SolFuld Sol

When to Plant Kål in Zone 4b

Start Seeds Indoors: Mar 20

Start Kål seeds indoors around Mar 20 (6 uger før sidste frost). Optimal germination temperature: 70F. Germinates in 5-10 days.

Transplant Outdoors: Apr 10

Transplant Kål seedlings outdoors after Apr 10. Wait until soil temperature reaches 45F. Space plants at 1/m² (30cm afstand). Harden off plants for a week before moving outside.

Harvest: Jun 14

First harvest approximately Jun 14 (~65 dage from transplant). Continue harvesting until first frost (Oct 5).

Fall Planting: Jul 13

For a fall harvest, plant Kål around Jul 13 (12 weeks before first frost).

Samdyrkning

✅ Kartofler✅ Mynte ✅ Dild✅ Løg✅ Selleri

❌ Bønner❌ Tomater❌ Jordbær

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

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