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When to Plant Lima Bean in Harpers Ferry, Iowa (52146)

Location

Harpers Ferry, Iowa

ZIP Code

52146

USDA Zone

5a

Last Frost

Sunday, May 10, 2026

📅 Planting Calendar

Direct Sow Outdoors Sunday, March 29, 2026

Pro Tip: Lima Bean can be directly sown outdoors. Plant 6 weeks before your last frost date.

🌿 Plant Details

Scientific Name Phaseolus lunatus
Days to Maturity 75 days

☀️ Growing Requirements

☀️

Sun

Full Sun

💧

Water

Regular

Seeds typically germinate in 7-14 days

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Growing Lima Bean in Zone 5a

Lima Bean (Phaseolus lunatus) is a popular garden vegetable. In Harpers Ferry, Iowa, which is in USDA Hardiness Zone 5a, you should direct sow seeds around Sunday, March 29, 2026.

Your average last frost date is Sunday, May 10, 2026. Lima Bean grows well when direct sown, as it doesn't transplant well or germinates quickly outdoors.