When should I plant Boerenkool in Zone 1b?

Start Boerenkool seeds indoors around Apr 13. Transplant outdoors after Apr 27. Expect first harvest around Jun 11.

What is the last frost date for Zone 1b?

The average last spring frost date for Zone 1b is May 25. The first fall frost averages Aug 28, giving a 95-day growing season.

Can I grow Boerenkool in Zone 1b?

Yes. Boerenkool needs 60 days to harvest. Zone 1b has a 95-day growing season, which is sufficient.

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🥬 Kweken van Boerenkool in Zone 1b

Zone 1b has harsh winters and a short growing season. Start Boerenkool early indoors to maximize your harvest window. Laatste vorst: May 25. Eerste vorst: Aug 28.

Planting Calendar

Indoor

Outdoor

Harvest

Apr 13Aug 28

Season: May 25 – Aug 28 (95 dagen)

Zone1b

Laatste vorstMay 25

Eerste vorstAug 28

Seizoen95 dagen

Oogst60 dagen

ZonHalfschaduw

When to Plant Boerenkool in Zone 1b

Start Seeds Indoors: Apr 13

Start Boerenkool seeds indoors around Apr 13 (6 weken voor de laatste vorst). Optimal germination temperature: 65F. Germinates in 5-10 days.

Transplant Outdoors: Apr 27

Transplant Boerenkool seedlings outdoors after Apr 27. Wait until soil temperature reaches 40F. Space plants at 1/m² (30cm afstand). Harden off plants for a week before moving outside.

Harvest: Jun 11

First harvest approximately Jun 11 (~45 dagen from transplant). Continue harvesting until first frost (Aug 28). Boerenkool can overwinter in mild climates for continued harvest.

Fall Planting: Jul 3

For a fall harvest, plant Boerenkool around Jul 3 (8 weeks before first frost).

Begeleidende Beplanting

✅ Salie ✅ Dille✅ Uien✅ Rode Bieten✅ Aardappels

❌ Aardbeien

Boerenkool 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

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