When should I plant Ķirbis in Zone 4a?

Start Ķirbis seeds indoors around Apr 7. Transplant outdoors after May 19. Expect first harvest around Jul 3.

What is the last frost date for Zone 4a?

The average last spring frost date for Zone 4a is May 5. The first fall frost averages Oct 1, giving a 149-day growing season.

Can I grow Ķirbis in Zone 4a?

Yes. Ķirbis needs 55 days to harvest. Zone 4a has a 149-day growing season, which is sufficient. You can plant up to 4 successions.

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🟡 Growing Ķirbis in Zone 4a

Zone 4a has cold winters and a moderate growing season. Timing is key for Ķirbis in this zone. Pēdējais sals: May 5. Pirmais sals: Oct 1.

Planting Calendar

Indoor

Outdoor

Harvest

Apr 7Oct 1

Season: May 5 – Oct 1 (149 dienas) · Succession: plant every 3 weeks (up to 4x)

Zona4a

Pēdējais salsMay 5

Pirmais salsOct 1

Sezona149 dienas

Raža55 dienas

SaulePilna Saule

When to Plant Ķirbis in Zone 4a

Start Seeds Indoors: Apr 7

Start Ķirbis seeds indoors around Apr 7 (4 nedēļas pirms pēdējās salnas). Optimal germination temperature: 85F. Germinates in 4-10 days.

Transplant Outdoors: May 19

Transplant Ķirbis seedlings outdoors after May 19. Wait until soil temperature reaches 65F. Space plants at 1/m² (30cm attālums). Harden off plants for a week before moving outside.

Harvest: Jul 3

First harvest approximately Jul 3 (~45 dienas from transplant). Continue harvesting until first frost (Oct 1).

Ķirbis 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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