When should I plant Korean Zucchini in Zone 3b?

Start Korean Zucchini seeds indoors around Apr 17. Transplant outdoors after May 15. Expect first harvest around Jun 19.

What is the last frost date for Zone 3b?

The average last spring frost date for Zone 3b is May 15. The first fall frost averages Sep 22, giving a 130-day growing season.

Can I grow Korean Zucchini in Zone 3b?

Yes. Korean Zucchini needs 55 days to harvest. Zone 3b has a 130-day growing season, which is sufficient. You can plant up to 3 successions.

Growing Korean Zucchini in Zone 3b

Zone 3b has harsh winters and a short growing season. Start Korean Zucchini early indoors to maximize your harvest window. Poslední mráz: May 15. První mráz: Sep 22.

Planting Calendar

Indoor

Outdoor

Harvest

Apr 17Sep 22

Season: May 15 – Sep 22 (130 dní) · Succession: plant every 3 weeks (up to 3x)

Zóna3b

Poslední mrázMay 15

První mrázSep 22

Sezóna130 dní

Sklizeň55 dní

SluncePlné Slunce

When to Plant Korean Zucchini in Zone 3b

Start Seeds Indoors: Apr 17

Start Korean Zucchini seeds indoors around Apr 17 (4 týdnů před posledním mrazem). Optimal germination temperature: 85F. Germinates in 4-10 days.

Transplant Outdoors: May 15

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

Harvest: Jun 19

First harvest approximately Jun 19 (~35 dní from transplant). Continue harvesting until first frost (Sep 22).

Smíšená Výsadba

✅ Kukuřice✅ Bean✅ Řeřicha ✅ Aksamitník

❌ Brambora

Korean Zucchini 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 Korean Zucchini

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

Start Free Korean Zucchini Growing Guide