When should I plant Ķirbis in Zone 4b?

Start Ķirbis seeds indoors around Apr 3. Transplant outdoors after May 15. Expect first harvest around Jun 29.

What is the last frost date for Zone 4b?

The average last spring frost date for Zone 4b is May 1. The first fall frost averages Oct 5, giving a 157-day growing season.

Can I grow Ķirbis in Zone 4b?

Yes. Ķirbis needs 55 days to harvest. Zone 4b has a 157-day growing season, which is sufficient. You can plant up to 4 successions.

🟡

🟡 Growing Ķirbis in Zone 4b

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

Planting Calendar

Indoor

Outdoor

Harvest

Apr 3Oct 5

Season: May 1 – Oct 5 (157 dienas) · Succession: plant every 3 weeks (up to 4x)

Zona4b

Pēdējais salsMay 1

Pirmais salsOct 5

Sezona157 dienas

Raža55 dienas

SaulePilna Saule

When to Plant Ķirbis in Zone 4b

Start Seeds Indoors: Apr 3

Start Ķirbis seeds indoors around Apr 3 (4 nedēļas pirms pēdējās salnas). Optimal germination temperature: 85F. Germinates in 4-10 days.

Transplant Outdoors: May 15

Transplant Ķirbis seedlings outdoors after May 15. Wait until soil temperature reaches 65F. Space plants at 1/m² (30cm attālums). Harden off plants for a week before moving outside.

Harvest: Jun 29

First harvest approximately Jun 29 (~45 dienas from transplant). Continue harvesting until first frost (Oct 5).

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

Plan Your Garden Ķirbis

Track Ķirbis from seed to harvest with personalized frost dates, watering recommendations, and companion planting visualization.

Start Free Ķirbis Growing Guide