When should I plant Zucchini in Zone 3b?

Start Zucchini seeds indoors around Apr 17. Transplant outdoors after May 29. Expect first harvest around Jul 3.

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 Zucchini in Zone 3b?

Yes. Zucchini needs 50 days to harvest. Zone 3b has a 130-day growing season, which is sufficient. You can plant up to 3 successions.

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🥒 Growing Zucchini in Zone 3b

Zone 3b has harsh winters and a short growing season. Start Zucchini early indoors to maximize your harvest window. Sista frost: May 15. Första frost: Sep 22.

Planting Calendar

Indoor

Outdoor

Harvest

Apr 17Sep 22

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

Zon3b

Sista frostMay 15

Första frostSep 22

Säsong130 dagar

Skörd50 dagar

SolFull Sol

When to Plant Zucchini in Zone 3b

Start Seeds Indoors: Apr 17

Start Zucchini seeds indoors around Apr 17 (4 veckor före sista frosten). Optimal germination temperature: 85F. Germinates in 4-10 days.

Transplant Outdoors: May 29

Transplant Zucchini seedlings outdoors after May 29. Wait until soil temperature reaches 65F. Space plants at 1/m² (30cm avstånd). Harden off plants for a week before moving outside.

Harvest: Jul 3

First harvest approximately Jul 3 (~35 dagar from transplant). Continue harvesting until first frost (Sep 22).

Fall Planting: Jul 14

For a fall harvest, plant Zucchini around Jul 14 (10 weeks before first frost).

Samplantering

✅ Majs✅ Bönor✅ Krassar✅ Honungsfacelia

❌ Potatisar

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

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