When to Plant Zucchini in Whittier, California (90607)

Location

Whittier, California

ZIP Code

90607

USDA Zone

10b

Last Frost

Thursday, January 15, 2026

📅 Planting Calendar

Start Seeds Indoors Thursday, December 18, 2025

Transplant Outdoors Thursday, January 29, 2026

Pro Tip: Start Zucchini seeds indoors 4 weeks before your last frost date, then transplant outdoors around Thursday, January 29, 2026.

🌿 Plant Details

Scientific Name Cucurbita pepo

Days to Maturity 50 days

Mature Height 24-36"

Spread 48"

Type Bush

Fruit Size Medium (6-8 inches)

☀️ Growing Requirements

☀️

Sun

Full Sun (6-8 hours)

💧

Water

Regular (1-2 inches/week)

↔️

Spacing

36" apart

🌱

Planting Depth

1" deep

Seeds typically germinate in 7-14 days

Ready to Plant Zucchini in Whittier?

Get your seeds now so they're ready by Thursday, December 18, 2025.

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🤝 Good Companions

CornBeansNasturtiumMarigold

⚠️ Avoid Planting Near

Potato

Other Plants for Whittier

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Growing Zucchini in Zone 10b

Zucchini (Cucurbita pepo) is a popular garden vegetable. In Whittier, California, which is in USDA Hardiness Zone 10b, you should start seeds indoors around Thursday, December 18, 2025.

Your average last frost date is Thursday, January 15, 2026. Plan to transplant your Zucchini seedlings outdoors around Thursday, January 29, 2026, about 2 weeks after your last frost date.