When should I plant Gresskar in Zone 6a?

Start Gresskar seeds indoors around Mar 31. Transplant outdoors after May 12. Expect first harvest around Jun 26.

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 Gresskar in Zone 6a?

Yes. Gresskar needs 55 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 Gresskar in Zone 6a

Zone 6a has mild winters and a long growing season -- good conditions for Gresskar. Siste frost: Apr 28. Første frost: Oct 8.

Planting Calendar

Indoor

Outdoor

Harvest

Mar 31Oct 8

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

Sone6a

Siste frostApr 28

Første frostOct 8

Sesong163 dager

Høst55 dager

SolFull Sol

When to Plant Gresskar in Zone 6a

Start Seeds Indoors: Mar 31

Start Gresskar seeds indoors around Mar 31 (4 uker før siste frost). Optimal germination temperature: 85F. Germinates in 4-10 days.

Transplant Outdoors: May 12

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

Harvest: Jun 26

First harvest approximately Jun 26 (~45 dager from transplant). Continue harvesting until first frost (Oct 8).

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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