When to Plant Radicchio in Berkeley, California (94708)

Location

Berkeley, California

ZIP Code

94708

USDA Zone

10a

Last Frost

Sunday, January 25, 2026

📅 Planting Calendar

Start Seeds Indoors Sunday, December 28, 2025

Transplant Outdoors Sunday, January 11, 2026

Pro Tip: Start Radicchio seeds indoors 4 weeks before your last frost date, then transplant outdoors around Sunday, January 11, 2026.

🌿 Plant Details

Scientific Name Cichorium intybus

Days to Maturity 80 days

Mature Height 6-12"

Spread 10"

Type Head

Fruit Size Small-Medium (fist-sized head)

☀️ Growing Requirements

☀️

Sun

Full Sun to Partial Shade

💧

Water

Regular (keep moist)

↔️

Spacing

10" apart

🌱

Planting Depth

0.25" deep

Seeds typically germinate in 5-10 days

Ready to Plant Radicchio in Berkeley?

Get your seeds now so they're ready by Sunday, December 28, 2025.

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Growing Radicchio in Zone 10a

Radicchio (Cichorium intybus) is a popular garden vegetable. In Berkeley, California, which is in USDA Hardiness Zone 10a, you should start seeds indoors around Sunday, December 28, 2025.

Your average last frost date is Sunday, January 25, 2026. Plan to transplant your Radicchio seedlings outdoors around Sunday, January 11, 2026, about -2 weeks after your last frost date.