When should I plant Grönkål in Zone 2a?

Start Grönkål seeds indoors around Apr 3. Transplant outdoors after Apr 17. Expect first harvest around Jun 1.

What is the last frost date for Zone 2a?

The average last spring frost date for Zone 2a is May 15. The first fall frost averages Sep 15, giving a 123-day growing season.

Can I grow Grönkål in Zone 2a?

Yes. Grönkål needs 60 days to harvest. Zone 2a has a 123-day growing season, which is sufficient.

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🥬 Growing Grönkål in Zone 2a

Zone 2a has harsh winters and a short growing season. Start Grönkål early indoors to maximize your harvest window. Sista frost: May 15. Första frost: Sep 15.

Planting Calendar

Indoor

Outdoor

Harvest

Apr 3Sep 15

Season: May 15 – Sep 15 (123 dagar)

Zon2a

Sista frostMay 15

Första frostSep 15

Säsong123 dagar

Skörd60 dagar

SolHalvskugga

When to Plant Grönkål in Zone 2a

Start Seeds Indoors: Apr 3

Start Grönkål seeds indoors around Apr 3 (6 veckor före sista frosten). Optimal germination temperature: 65F. Germinates in 5-10 days.

Transplant Outdoors: Apr 17

Transplant Grönkål seedlings outdoors after Apr 17. Wait until soil temperature reaches 40F. Space plants at 1/m² (30cm avstånd). Harden off plants for a week before moving outside.

Harvest: Jun 1

First harvest approximately Jun 1 (~45 dagar from transplant). Continue harvesting until first frost (Sep 15). Grönkål can overwinter in mild climates for continued harvest.

Fall Planting: Jul 21

For a fall harvest, plant Grönkål around Jul 21 (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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