When should I plant Zucchini in Zone 9b?

Start Zucchini seeds indoors around Feb 10. Transplant outdoors after Mar 24. Expect first harvest around Apr 28.

What is the last frost date for Zone 9b?

The average last spring frost date for Zone 9b is Mar 10. The first fall frost averages Nov 15, giving a 250-day growing season.

Can I grow Zucchini in Zone 9b?

Yes. Zucchini needs 50 days to harvest. Zone 9b has a 250-day growing season, which is sufficient. You can plant up to 9 successions.

🥒

🥒 Growing Zucchini in Zone 9b

Zone 9b has warm winters and an extended growing season -- excellent for heat-loving crops like Zucchini. Sista frost: Mar 10. Första frost: Nov 15.

Planting Calendar

Indoor

Outdoor

Harvest

Feb 10Nov 15

Season: Mar 10 – Nov 15 (250 dagar) · Succession: plant every 3 weeks (up to 9x)

Zon9b

Sista frostMar 10

Första frostNov 15

Säsong250 dagar

Skörd50 dagar

SolFull Sol

When to Plant Zucchini in Zone 9b

Start Seeds Indoors: Feb 10

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

Transplant Outdoors: Mar 24

Transplant Zucchini seedlings outdoors after Mar 24. Wait until soil temperature reaches 65F. Space plants at 1/m² (30cm avstånd). Harden off plants for a week before moving outside.

Harvest: Apr 28

First harvest approximately Apr 28 (~35 dagar from transplant). Continue harvesting until first frost (Nov 15).

Fall Planting: Sep 6

For a fall harvest, plant Zucchini around Sep 6 (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

Plan Your Garden Zucchini

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

Start Free Zucchini Growing Guide