When should I plant Gresskar in Zone 1b?

Start Gresskar seeds indoors around Apr 27. Transplant outdoors after Jun 8. Expect first harvest around Jul 23.

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 Gresskar in Zone 1b?

Yes. Gresskar needs 55 days to harvest. Zone 1b has a 95-day growing season, which is sufficient. You can plant up to 1 successions.

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🟡 Growing Gresskar in Zone 1b

Zone 1b has harsh winters and a short growing season. Start Gresskar early indoors to maximize your harvest window. Siste frost: May 25. Første frost: Aug 28.

Planting Calendar

Indoor

Outdoor

Harvest

Apr 27Aug 28

Season: May 25 – Aug 28 (95 dager) · Succession: plant every 3 weeks (up to 1x)

Sone1b

Siste frostMay 25

Første frostAug 28

Sesong95 dager

Høst55 dager

SolFull Sol

When to Plant Gresskar in Zone 1b

Start Seeds Indoors: Apr 27

Start Gresskar seeds indoors around Apr 27 (4 uker før siste frost). Optimal germination temperature: 85F. Germinates in 4-10 days.

Transplant Outdoors: Jun 8

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

Harvest: Jul 23

First harvest approximately Jul 23 (~45 dager from transplant). Continue harvesting until first frost (Aug 28).

Gresskar 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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