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When to Plant Honeydew in Ottawa County, OH

Honeydew melons have smooth, pale green rinds and sweet, light green flesh. They require a long, warm growing season and are slightly more heat-tolerant than cantaloupe.

Ottawa County, Ohio is in USDA Zone 6a. The average last spring frost is April 25 and the first fall frost is October 25, giving you a growing season of approximately 183 days.

At an elevation of 1,264 feet, Ottawa County receives approximately 31.1 inches of rainfall annually with predominantly silt loam soil. Summer highs average 88ยฐF, providing good warmth for Honeydew during the growing season.

Ottawa County, OH (Zone 6a) Moderate season
183 days
Last Spring Frost April 25
183 growing days
First Fall Frost October 25

Ottawa County Soil Profile

Soil Type

Silt Loam

Soil pH

6.2-7

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (35 days to spare)
Transplant: May 9 🍅 Harvest: Aug 1 – Sep 12
Recommended (50%) ✓ Fits season (36 days to spare)
Transplant: May 16 🍅 Harvest: Aug 8 – Sep 19
Safe Start (90%) ✓ Fits season (36 days to spare)
Transplant: May 24 🍅 Harvest: Aug 16 – Sep 27

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
0.7″/week
You supply
0.3″/week
Watering frequency Only during dry spells
Season total 466 gal / 100 sq ft
Honeydew needs ~1,520 GDD — county provides 2,928 GDD Excellent fit

Honeydew Planting Timeline โ€” Ottawa County, OH

Honeydew Planting Calendar

Activity When Date Range
Transplant Outdoors May 16 May 16 โ€“ May 30
Harvest August 8 Aug 8 โ€“ Sep 19

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

Month-by-Month Timeline

MonthActivities
January โ€”
February โ€”
March โ€”
April โ€”
May Transplant Outdoors
June โ€”
July โ€”
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

80โ€“110 days

Soil pH

6 โ€“ 7

USDA Zone

Zone 6a

Growing Season

183 days

Growing Tips for Ottawa County

Start seeds indoors 4 weeks before transplanting. Plant on raised mounds of rich soil. Harvest when the blossom end gives slightly when pressed and the skin turns creamy yellow.

Companion Planting

Good Companions

Avoid Planting Near

  • Potatoes

Level Up Your Garden

Frequently Asked Questions

When should I plant Honeydew in Ottawa County, OH?

Ottawa County is in Zone 6a with an average last frost of April 25. Plan your Honeydew planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Ottawa County, OH?

Ottawa County, Ohio is in USDA Hardiness Zone 6a. The average last spring frost is April 25 and first fall frost is October 25.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Ottawa County gardeners in Zone 6a 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 Ottawa County, OH. Local conditions may vary. Last updated: April 2026.