When should I plant Kålrot in Zone 3b?

Direct sow Kålrot outdoors around Apr 24. Expect first harvest around Jun 8.

What is the last frost date for Zone 3b?

The average last spring frost date for Zone 3b is May 15. The first fall frost averages Sep 22, giving a 130-day growing season.

Can I grow Kålrot in Zone 3b?

Yes. Kålrot needs 45 days to harvest. Zone 3b has a 130-day growing season, which is sufficient. You can plant up to 4 successions.

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⚪ Growing Kålrot in Zone 3b

Zone 3b has harsh winters and a short growing season. Start Kålrot early indoors to maximize your harvest window. Siste frost: May 15. Første frost: Sep 22.

Planting Calendar

Outdoor

Harvest

Apr 24Sep 22

Season: May 15 – Sep 22 (130 dager) · Succession: plant every 3 weeks (up to 4x)

Sone3b

Siste frostMay 15

Første frostSep 22

Sesong130 dager

Høst45 dager

SolFull Sol

When to Plant Kålrot in Zone 3b

Sow Seeds Outdoors: Apr 24

Direct sow Kålrot seeds outdoors around Apr 24. Wait until soil temperature reaches 40F. Space plants at 9/m² (10cm avstand).

Harvest: Jun 8

First harvest approximately Jun 8 (~45 dager from planting). Continue harvesting until first frost (Sep 22).

Fall Planting: Jul 28

For a fall harvest, plant Kålrot around Jul 28 (8 weeks before first frost).

Samdyrking

✅ Erter✅ Vikke

❌ Knoppurt❌ Sennepsblad

Kålrot 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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