When to Plant Celery in Seattle, Washington (98129)

Location

Seattle, Washington

ZIP Code

98129

USDA Zone

Last Frost

Friday, February 20, 2026

📅 Planting Calendar

Start Seeds Indoors Friday, December 12, 2025

Transplant Outdoors Friday, March 6, 2026

Pro Tip: Start Celery seeds indoors 10 weeks before your last frost date, then transplant outdoors around Friday, March 6, 2026.

🌿 Plant Details

Scientific Name Apium graveolens

Days to Maturity 130 days

☀️ Growing Requirements

☀️

Sun

Full Sun

💧

Water

Regular

Seeds typically germinate in 8-28 days

Ready to Plant Celery in Seattle?

Get your seeds now so they're ready by Friday, December 12, 2025.

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🤝 Good Companions

CosmosDaisySnapDragon

⚠️ Avoid Planting Near

CornAster

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Growing Celery in Zone 9a

Celery (Apium graveolens) is a popular garden vegetable. In Seattle, Washington, which is in USDA Hardiness Zone 9a, you should start seeds indoors around Friday, December 12, 2025.

Your average last frost date is Friday, February 20, 2026. Plan to transplant your Celery seedlings outdoors around Friday, March 6, 2026, about 2 weeks after your last frost date.