When to Plant Rhubarb in Havre De Grace, Maryland (21078)

Location

Havre De Grace, Maryland

ZIP Code

21078

USDA Zone

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, then transplant outdoors around Sunday, April 19, 2026.

🌿 Plant Details

Scientific Name Rheum rhabarbarum

Days to Maturity 365 days

☀️ Growing Requirements

☀️

Sun

Full Sun

💧

Water

Regular

Seeds typically germinate in 8-21 days

Ready to Plant Rhubarb in Havre De Grace?

Get your seeds now so they're ready by Sunday, February 8, 2026.

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Growing Rhubarb in Zone 7b

Rhubarb (Rheum rhabarbarum) is a popular garden vegetable. In Havre De Grace, Maryland, 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.