When should I plant Kupus in Zone 3b?

Start Kupus seeds indoors around Apr 3. Transplant outdoors after Apr 24. Expect first harvest around Jun 28.

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 Kupus in Zone 3b?

Yes. Kupus needs 80 days to harvest. Zone 3b has a 130-day growing season, which is sufficient.

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🥬 Growing Kupus in Zone 3b

Zone 3b has harsh winters and a short growing season. Start Kupus early indoors to maximize your harvest window. Zadnji mraz: May 15. Prvi mraz: Sep 22.

Planting Calendar

Indoor

Outdoor

Harvest

Apr 3Sep 22

Season: May 15 – Sep 22 (130 dana)

Zona3b

Zadnji mrazMay 15

Prvi mrazSep 22

Sezona130 dana

Berba80 dana

SuncePuno Sunce

When to Plant Kupus in Zone 3b

Start Seeds Indoors: Apr 3

Start Kupus seeds indoors around Apr 3 (6 tjedana prije zadnjeg mraza). Optimal germination temperature: 70F. Germinates in 5-10 days.

Transplant Outdoors: Apr 24

Transplant Kupus seedlings outdoors after Apr 24. Wait until soil temperature reaches 45F. Space plants at 1/m² (30cm razmak). Harden off plants for a week before moving outside.

Harvest: Jun 28

First harvest approximately Jun 28 (~65 dana from transplant). Continue harvesting until first frost (Sep 22).

Fall Planting: Jun 30

For a fall harvest, plant Kupus around Jun 30 (12 weeks before first frost).

Sadnja u Društvu

✅ Krumpiri✅ Menta ✅ Kopar✅ Lukovi✅ Celer

❌ Grah❌ Rajčice❌ Jagode

Kupus 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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