When should I plant Kurkku in Zone 4a?

Start Kurkku seeds indoors around Apr 7. Transplant outdoors after May 19. Expect first harvest around Jul 8.

What is the last frost date for Zone 4a?

The average last spring frost date for Zone 4a is May 5. The first fall frost averages Oct 1, giving a 149-day growing season.

Can I grow Kurkku in Zone 4a?

Yes. Kurkku needs 60 days to harvest. Zone 4a has a 149-day growing season, which is sufficient. You can plant up to 4 successions.

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🥒 Growing Kurkku in Zone 4a

Zone 4a has cold winters and a moderate growing season. Timing is key for Kurkku in this zone. Viimeinen halla: May 5. Ensimmäinen halla: Oct 1.

Planting Calendar

Indoor

Outdoor

Harvest

Apr 7Oct 1

Season: May 5 – Oct 1 (149 päivää) · Succession: plant every 3 weeks (up to 4x)

Vyöhyke4a

Viimeinen hallaMay 5

Ensimmäinen hallaOct 1

Kausi149 päivää

Sato60 päivää

AurinkoTäysi Aurinko

When to Plant Kurkku in Zone 4a

Start Seeds Indoors: Apr 7

Start Kurkku seeds indoors around Apr 7 (4 viikkoa ennen viimeistä hallaa). Optimal germination temperature: 85F. Germinates in 3-10 days.

Transplant Outdoors: May 19

Transplant Kurkku seedlings outdoors after May 19. Wait until soil temperature reaches 65F. Space plants at 2/m² (15-20cm välein). Harden off plants for a week before moving outside.

Harvest: Jul 8

First harvest approximately Jul 8 (~50 päivää from transplant). Continue harvesting until first frost (Oct 1).

Fall Planting: Jul 23

For a fall harvest, plant Kurkku around Jul 23 (10 weeks before first frost).

Kumppaniviljely

✅ Tilli✅ Samettikukat✅ Pavut✅ Herneet✅ Maissi

❌ Perunat❌ Voimakkaat Yrtit (Salvia)

Kurkku 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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