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When to Plant Rutabaga in Rock Island, Illinois (61299)

Location

Rock Island, Illinois

ZIP Code

61299

USDA Zone

5b

Last Frost

Saturday, April 25, 2026

📅 Planting Calendar

Direct Sow Outdoors Saturday, March 28, 2026

Pro Tip: Rutabaga can be directly sown outdoors. Plant 4 weeks before your last frost date.

🌿 Plant Details

Scientific Name Brassica napus
Days to Maturity 90 days

☀️ Growing Requirements

☀️

Sun

Full Sun

💧

Water

Regular

Seeds typically germinate in 7-14 days

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Other Plants for Rock Island

Growing Rutabaga in Zone 5b

Rutabaga (Brassica napus) is a popular garden vegetable. In Rock Island, Illinois, which is in USDA Hardiness Zone 5b, you should direct sow seeds around Saturday, March 28, 2026.

Your average last frost date is Saturday, April 25, 2026. Rutabaga grows well when direct sown, as it doesn't transplant well or germinates quickly outdoors.