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When to Plant Rhubarb in Blue River, Oregon (97413)

Location

Blue River, Oregon

ZIP Code

97413

USDA Zone

7b

Last Frost

Sunday, April 5, 2026

📅 Planting Calendar

Start Seeds Indoors Sunday, February 8, 2026
Transplant Outdoors Sunday, April 19, 2026

Pro Tip: Start Rhubarb seeds indoors 8 weeks before your last frost date for best results.

🌿 Plant Details

Scientific Name Rheum rhabarbarum
Days to Maturity 7 days

☀️ Growing Requirements

☀️

Sun

Full Sun

💧

Water

Regular

Seeds typically germinate in 8-21 days

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Other Plants for Blue River

Growing Rhubarb in Zone 7b

Rhubarb (Rheum rhabarbarum) is a popular garden vegetable. In Blue River, Oregon, which is in USDA Hardiness Zone 7b, you should start seeds indoors around Sunday, February 8, 2026.

Your average last frost date is Sunday, April 5, 2026. Plan to transplant your Rhubarb seedlings outdoors around Sunday, April 19, 2026, about 2 weeks after your last frost date.