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When to Plant Rutabaga in Kwethluk, Alaska (99621)

Location

Kwethluk, Alaska

ZIP Code

99621

USDA Zone

4a

Last Frost

Friday, May 15, 2026

📅 Planting Calendar

Direct Sow Outdoors Friday, April 17, 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 Kwethluk

Growing Rutabaga in Zone 4a

Rutabaga (Brassica napus) is a popular garden vegetable. In Kwethluk, Alaska, which is in USDA Hardiness Zone 4a, you should direct sow seeds around Friday, April 17, 2026.

Your average last frost date is Friday, May 15, 2026. Rutabaga grows well when direct sown, as it doesn't transplant well or germinates quickly outdoors.