When should I plant Kesäkurpitsa in Zone 6a?

Start Kesäkurpitsa seeds indoors around Mar 31. Transplant outdoors after May 12. Expect first harvest around Jun 16.

What is the last frost date for Zone 6a?

The average last spring frost date for Zone 6a is Apr 28. The first fall frost averages Oct 8, giving a 163-day growing season.

Can I grow Kesäkurpitsa in Zone 6a?

Yes. Kesäkurpitsa needs 50 days to harvest. Zone 6a has a 163-day growing season, which is sufficient. You can plant up to 5 successions.

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🥒 Growing Kesäkurpitsa in Zone 6a

Zone 6a has mild winters and a long growing season -- good conditions for Kesäkurpitsa. Viimeinen halla: Apr 28. Ensimmäinen halla: Oct 8.

Planting Calendar

Indoor

Outdoor

Harvest

Mar 31Oct 8

Season: Apr 28 – Oct 8 (163 päivää) · Succession: plant every 3 weeks (up to 5x)

Vyöhyke6a

Viimeinen hallaApr 28

Ensimmäinen hallaOct 8

Kausi163 päivää

Sato50 päivää

AurinkoTäysi Aurinko

When to Plant Kesäkurpitsa in Zone 6a

Start Seeds Indoors: Mar 31

Start Kesäkurpitsa seeds indoors around Mar 31 (4 viikkoa ennen viimeistä hallaa). Optimal germination temperature: 85F. Germinates in 4-10 days.

Transplant Outdoors: May 12

Transplant Kesäkurpitsa seedlings outdoors after May 12. Wait until soil temperature reaches 65F. Space plants at 1/m² (30cm välein). Harden off plants for a week before moving outside.

Harvest: Jun 16

First harvest approximately Jun 16 (~35 päivää from transplant). Continue harvesting until first frost (Oct 8).

Fall Planting: Jul 30

For a fall harvest, plant Kesäkurpitsa around Jul 30 (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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