When should I plant Gresskar in Zone 9a?

Start Gresskar seeds indoors around Feb 20. Transplant outdoors after Apr 3. Expect first harvest around May 18.

What is the last frost date for Zone 9a?

The average last spring frost date for Zone 9a is Mar 20. The first fall frost averages Nov 12, giving a 237-day growing season.

Can I grow Gresskar in Zone 9a?

Yes. Gresskar needs 55 days to harvest. Zone 9a has a 237-day growing season, which is sufficient. You can plant up to 8 successions.

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🟡 Growing Gresskar in Zone 9a

Zone 9a has warm winters and an extended growing season -- excellent for heat-loving crops like Gresskar. Siste frost: Mar 20. Første frost: Nov 12.

Planting Calendar

Indoor

Outdoor

Harvest

Feb 20Nov 12

Season: Mar 20 – Nov 12 (237 dager) · Succession: plant every 3 weeks (up to 8x)

Sone9a

Siste frostMar 20

Første frostNov 12

Sesong237 dager

Høst55 dager

SolFull Sol

When to Plant Gresskar in Zone 9a

Start Seeds Indoors: Feb 20

Start Gresskar seeds indoors around Feb 20 (4 uker før siste frost). Optimal germination temperature: 85F. Germinates in 4-10 days.

Transplant Outdoors: Apr 3

Transplant Gresskar seedlings outdoors after Apr 3. Wait until soil temperature reaches 65F. Space plants at 1/m² (30cm avstand). Harden off plants for a week before moving outside.

Harvest: May 18

First harvest approximately May 18 (~45 dager from transplant). Continue harvesting until first frost (Nov 12).

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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