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When to Plant Edamame in Geauga County, OH

Edamame are soybeans harvested at the immature green stage for a sweet, nutty snack. They are high in protein and easy to grow in warm climates.

Geauga County, Ohio is in USDA Zone 5b. The average last spring frost is May 5 and the first fall frost is October 13, giving you a growing season of approximately 161 days.

At an elevation of 1,003 feet, Geauga County receives approximately 35.9 inches of rainfall annually with predominantly silt loam soil. Summer highs average 86ยฐF, providing good warmth for Edamame during the growing season.

Geauga County, OH (Zone 5b) Moderate season
161 days
Last Spring Frost May 5
161 growing days
First Fall Frost October 13

Geauga County Soil Profile

Soil Type

Silt Loam

Soil pH

5.9-6.8

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (43 days to spare)
Transplant: Apr 29 🍅 Harvest: Jul 15 – Aug 26
Recommended (50%) ✓ Fits season (42 days to spare)
Transplant: May 5 🍅 Harvest: Jul 21 – Sep 1
Safe Start (90%) ✓ Fits season (39 days to spare)
Transplant: May 22 🍅 Harvest: Aug 7 – Sep 18

Percentages indicate frost risk at transplant. The 70% safe window means there is a 30% chance of frost after transplant — suitable for cold-hardy crops or gardeners with frost protection. The 90% safe window is best for tender plants.

Plant Water Budget

Plant needs
1.0″/week
Rainfall provides
0.9″/week
You supply
0.1″/week
Watering frequency Only during dry spells
Season total 91 gal / 100 sq ft
Edamame needs ~1,269 GDD — county provides 2,334 GDD Excellent fit

Edamame Planting Timeline โ€” Geauga County, OH

Edamame Planting Calendar

Activity When Date Range
Direct Sow May 12 May 12 โ€“ Jun 2
Harvest July 28 Jul 28 โ€“ Sep 8

Plant 1" deep ยท 15" apart ยท Rows 24" apart

Month-by-Month Timeline

MonthActivities
January โ€”
February โ€”
March โ€”
April โ€”
May Direct Sow
June Direct Sow
July Harvest
August Harvest
September Harvest
October โ€”
November โ€”
December โ€”

Growing Conditions

Sun

Full Sun (6-8+ hours)

Water

Moderate โ€” regular watering

Days to Maturity

75โ€“100 days

Soil pH

6 โ€“ 7

USDA Zone

Zone 5b

Growing Season

161 days

Growing Tips for Geauga County

Direct sow after soil is warm. Do not over-fertilize with nitrogen. Harvest when pods are plump and bright green but before they start to yellow. Steam or boil pods before eating.

Companion Planting

Good Companions

Avoid Planting Near

  • Onion
  • Garlic

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Frequently Asked Questions

When should I plant Edamame in Geauga County, OH?

Geauga County is in Zone 5b with an average last frost of May 5. Plan your Edamame planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Geauga County, OH?

Geauga County, Ohio is in USDA Hardiness Zone 5b. The average last spring frost is May 5 and first fall frost is October 13.

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Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Geauga County gardeners in Zone 5b organize planting dates, track what's growing, and never miss a planting window.

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Data sources: USDA Plant Hardiness Zone Map (2023), NOAA 30-Year Climate Normals. Frost dates are based on 50% probability averages for Geauga County, OH. Local conditions may vary. Last updated: April 2026.