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When to Plant Celery in Harshaw, Wisconsin (54529)

Location

Harshaw, Wisconsin

ZIP Code

54529

USDA Zone

4a

Last Frost

Friday, May 15, 2026

📅 Planting Calendar

Start Seeds Indoors Friday, March 6, 2026
Transplant Outdoors Friday, May 29, 2026

Pro Tip: Start Celery seeds indoors 10 weeks before your last frost date, then transplant outdoors around Friday, May 29, 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 Harshaw?

Get your seeds now so they're ready by Friday, March 6, 2026.

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🤝 Good Companions

CosmosDaisySnapDragon

⚠️ Avoid Planting Near

CornAster

Other Plants for Harshaw

Growing Celery in Zone 4a

Celery (Apium graveolens) is a popular garden vegetable. In Harshaw, Wisconsin, which is in USDA Hardiness Zone 4a, you should start seeds indoors around Friday, March 6, 2026.

Your average last frost date is Friday, May 15, 2026. Plan to transplant your Celery seedlings outdoors around Friday, May 29, 2026, about 2 weeks after your last frost date.