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When to Plant Eggplant in Holmes County, OH

Eggplant is a heat-loving solanaceous crop that produces glossy fruits in purple, white, or striped varieties. It requires long, warm growing seasons for best production.

Holmes County, Ohio is in USDA Zone 5b. The average last spring frost is May 2 and the first fall frost is October 11, giving you a growing season of approximately 162 days.

At an elevation of 788 feet, Holmes County receives approximately 39.4 inches of rainfall annually with predominantly silt loam soil. Summer highs average 85ยฐF, providing good warmth for Eggplant during the growing season.

Holmes County, OH (Zone 5b) Moderate season
162 days
Last Spring Frost May 2
162 growing days
First Fall Frost October 11

Holmes County Soil Profile

Soil Type

Silt Loam

Soil pH

6.2-7.3

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (13 days to spare)
Start indoors: Feb 17 Transplant: May 12 🍅 Harvest: Jul 21 – Sep 22
Recommended (50%) ✓ Fits season (15 days to spare)
Start indoors: Feb 21 Transplant: May 16 🍅 Harvest: Jul 25 – Sep 26
Safe Start (90%) ✓ Fits season (10 days to spare)
Start indoors: Mar 10 Transplant: Jun 2 🍅 Harvest: Aug 11 – Oct 13

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
1.0″/week
Watering frequency Natural rainfall sufficient
Season total 0 gal / 100 sq ft
Eggplant needs ~1,031 GDD — county provides 2,227 GDD Excellent fit

Eggplant Planting Timeline โ€” Holmes County, OH

Eggplant Planting Calendar

Activity When Date Range
Start Indoors February 21 Feb 21 โ€“ Mar 7
Transplant Outdoors May 16 May 16 โ€“ May 30
Direct Sow May 9 May 9 โ€“ May 30
Harvest July 25 Jul 25 โ€“ Sep 26

Plant 1" deep ยท 30" apart ยท Rows 42" apart

Month-by-Month Timeline

MonthActivities
January โ€”
February Start Indoors
March Start Indoors
April โ€”
May Transplant Outdoors Direct Sow
June โ€”
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

65โ€“85 days

Soil pH

5.5 โ€“ 7

USDA Zone

Zone 5b

Growing Season

162 days

Growing Tips for Holmes County

Start seeds indoors 8-10 weeks before last frost. Transplant only after nighttime temperatures stay above 55F. Mulch to retain moisture and warmth around roots.

Companion Planting

Good Companions

Avoid Planting Near

  • Fennel
  • Kohlrabi

Level Up Your Garden

Frequently Asked Questions

When should I plant Eggplant in Holmes County, OH?

Holmes County is in Zone 5b with an average last frost of May 2. Plan your Eggplant planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Holmes County, OH?

Holmes County, Ohio is in USDA Hardiness Zone 5b. The average last spring frost is May 2 and first fall frost is October 11.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Holmes 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 Holmes County, OH. Local conditions may vary. Last updated: April 2026.