When should I plant Kesäkurpitsa in Zone 1b?

Start Kesäkurpitsa seeds indoors around Apr 27. Transplant outdoors after Jun 8. Expect first harvest around Jul 13.

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 Kesäkurpitsa in Zone 1b?

Yes. Kesäkurpitsa needs 50 days to harvest. Zone 1b has a 95-day growing season, which is sufficient. You can plant up to 2 successions.

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🥒 Growing Kesäkurpitsa in Zone 1b

Zone 1b has harsh winters and a short growing season. Start Kesäkurpitsa early indoors to maximize your harvest window. Viimeinen halla: May 25. Ensimmäinen halla: Aug 28.

Planting Calendar

Indoor

Outdoor

Harvest

Apr 27Aug 28

Season: May 25 – Aug 28 (95 päivää) · Succession: plant every 3 weeks (up to 2x)

Vyöhyke1b

Viimeinen hallaMay 25

Ensimmäinen hallaAug 28

Kausi95 päivää

Sato50 päivää

AurinkoTäysi Aurinko

When to Plant Kesäkurpitsa in Zone 1b

Start Seeds Indoors: Apr 27

Start Kesäkurpitsa seeds indoors around Apr 27 (4 viikkoa ennen viimeistä hallaa). Optimal germination temperature: 85F. Germinates in 4-10 days.

Transplant Outdoors: Jun 8

Transplant Kesäkurpitsa seedlings outdoors after Jun 8. Wait until soil temperature reaches 65F. Space plants at 1/m² (30cm välein). Harden off plants for a week before moving outside.

Harvest: Jul 13

First harvest approximately Jul 13 (~35 päivää from transplant). Continue harvesting until first frost (Aug 28).

Fall Planting: Jun 19

For a fall harvest, plant Kesäkurpitsa around Jun 19 (10 weeks before first frost).

Kumppaniviljely

✅ Maissi✅ Pavut✅ Krassit✅ Hunajakukka

❌ Perunat

Kesäkurpitsa 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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