When to Plant Rutabaga in Saint Lawrence, South Dakota (57373)
Location
Saint Lawrence, South Dakota
ZIP Code
57373
USDA Zone
4b
Last Frost
Tuesday, May 5, 2026
📅 Planting Calendar
Direct Sow Outdoors Tuesday, April 7, 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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Growing Rutabaga in Zone 4b
Rutabaga (Brassica napus) is a popular garden vegetable. In Saint Lawrence, South Dakota, which is in USDA Hardiness Zone 4b, you should direct sow seeds around Tuesday, April 7, 2026.
Your average last frost date is Tuesday, May 5, 2026. Rutabaga grows well when direct sown, as it doesn't transplant well or germinates quickly outdoors.