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When to Plant Radicchio in Rio Grande, Ohio (45674)

Location

Rio Grande, Ohio

ZIP Code

45674

USDA Zone

6b

Last Frost

Wednesday, April 15, 2026

📅 Planting Calendar

Start Seeds Indoors Wednesday, March 18, 2026
Transplant Outdoors Wednesday, April 1, 2026

Pro Tip: Start Radicchio seeds indoors 4 weeks before your last frost date for best results.

🌿 Plant Details

Scientific Name Cichorium intybus
Days to Maturity 80 days

☀️ Growing Requirements

☀️

Sun

Full Sun

💧

Water

Regular

Seeds typically germinate in 7-14 days

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Other Plants for Rio Grande

Growing Radicchio in Zone 6b

Radicchio (Cichorium intybus) is a popular garden vegetable. In Rio Grande, Ohio, which is in USDA Hardiness Zone 6b, you should start seeds indoors around Wednesday, March 18, 2026.

Your average last frost date is Wednesday, April 15, 2026. Plan to transplant your Radicchio seedlings outdoors around Wednesday, April 1, 2026, about -2 weeks after your last frost date.