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When to Plant Cantaloupe in Monroe County, OH

Cantaloupe is a sweet, aromatic melon with salmon-colored flesh and a netted rind. It requires a long, warm growing season and is the quintessential summer fruit.

Monroe County, Ohio is in USDA Zone 6a. The average last spring frost is April 27 and the first fall frost is October 20, giving you a growing season of approximately 176 days.

At an elevation of 567 feet, Monroe County receives approximately 31.9 inches of rainfall annually with predominantly silt loam soil. Summer highs average 85ยฐF, providing good warmth for Cantaloupe during the growing season.

Monroe County, OH (Zone 6a) Moderate season
176 days
Last Spring Frost April 27
176 growing days
First Fall Frost October 20

Monroe County Soil Profile

Soil Type

Silt Loam

Soil pH

5.8-6.9

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (50 days to spare)
Transplant: May 13 🍅 Harvest: Jul 22 – Aug 26
Recommended (50%) ✓ Fits season (50 days to spare)
Transplant: May 18 🍅 Harvest: Jul 27 – Aug 31
Safe Start (90%) ✓ Fits season (43 days to spare)
Transplant: Jun 6 🍅 Harvest: Aug 15 – Sep 19

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.

Soil Compatibility in Monroe County

How your county's soil matches Cantaloupe's growing requirements.

Soil pH

Your soil pH (5.8โ€“6.9) overlaps with Cantaloupe's range (6.0โ€“7.0), though not a perfect match.

Soil Texture

The silt loam soil in Monroe County is excellent for Cantaloupe โ€” good drainage, moisture retention, and nutrient holding capacity.

Organic Matter

Organic matter is moderate (4.0%). Annual compost additions will help Cantaloupe.

How to Plant Cantaloupe

1"
Planting Depth
30"
Between Plants
42"
Between Rows

Succession Planting Cantaloupe

2
successive plantings in your 176-day season

Sow every 8 weeks. Last sowing by Jul 22 to harvest before frost.

Plant Water Budget

Plant needs
1.3″/week
Rainfall provides
0.8″/week
You supply
0.7″/week
Watering frequency 1-2 times/week
Season total 1,013 gal / 100 sq ft
Drought risk

Water stress score is 6/10 โ€” consider drought-tolerant varieties and mulching

Monthly Watering Guide for Cantaloupe

Cantaloupe needs approximately 1.3 inches of water per week (5.6" per month). Here's how your county's rainfall compares month by month.

Month Cantaloupe Needs Rainfall You Supplement Action
Jan โ€” 1.1" 0" โ„๏ธ Dormant
Feb โ€” 1.5" 0" โ„๏ธ Dormant
Mar โ€” 2.1" 0" โ„๏ธ Dormant
Apr 5.6" 3.3" 2.3" ๐Ÿ’ง Light watering
May 5.6" 3.4" 2.2" ๐Ÿ’ง Light watering
Jun 5.6" 3.9" 1.7" ๐Ÿ’ง Light watering
Jul 5.6" 3.9" 1.7" ๐Ÿ’ง Light watering
Aug 5.6" 3.5" 2.1" ๐Ÿ’ง Light watering
Sep 5.6" 3.1" 2.5" ๐Ÿ’ง Light watering
Oct 5.6" 2.7" 2.9" ๐Ÿšฟ Regular watering
Nov โ€” 1.9" 0" โ„๏ธ Dormant
Dec โ€” 1.5" 0" โ„๏ธ Dormant

Water needs are for active growing months only (Aprโ€“Oct in Monroe County). Supplement amounts are based on average rainfall โ€” actual needs vary with temperature, soil, and mulching.

Cantaloupe Heat Requirements (GDD)

What are Growing Degree Days (GDD)?

Growing Degree Days measure the total warmth your plants receive during the growing season. Think of it as a "heat bank" โ€” every day above 50ยฐF deposits warmth that helps your plants grow.

Each plant needs a certain amount of accumulated heat to mature. If your county provides more GDD than the plant needs, it's a great fit. If it's close, you may want to choose faster-maturing varieties or start seeds indoors to get a head start.

Cantaloupe needs ~1,100 GDD — county provides 2,420 GDD Excellent fit

Cantaloupe Planting Timeline โ€” Monroe County, OH

Cantaloupe Planting Calendar

Activity When Date Range
Transplant Outdoors May 18 May 18 โ€“ Jun 1
Harvest July 27 Jul 27 โ€“ Aug 31

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 Transplant Outdoors
July Harvest
August Harvest
September โ€”
October โ€”
November โ€”
December โ€”

Growing Conditions

โ˜€๏ธ Sun

Full Sun (6-8+ hours)

๐Ÿ’ง Water

1.3"/week ยท 1-2 times/week

๐Ÿ“… Days to Maturity

70โ€“90 days

๐Ÿงช Soil pH

Needs 6โ€“7 ยท Your soil: acceptable

๐Ÿ—บ๏ธ USDA Zone

Zone 6a

๐Ÿ“† Growing Season

176 days in Monroe County

Growing Tips for Cantaloupe in Monroe County

Direct sow Cantaloupe outdoors after April 27 in Monroe County when soil has warmed and frost danger has passed.

Common pests for Cantaloupe in this region include squash vine borer and cucumber beetles. Use row covers early in the season and inspect plants weekly.

General growing tips

Start seeds indoors 3-4 weeks early or direct sow on warm mounds. Reduce watering as fruits ripen. Harvest when stem slips easily from the fruit with gentle pressure.

Companion Planting

Good Companions

Avoid Planting Near

  • Potatoes

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Cantaloupe in Monroe County, OH?

Monroe County is in Zone 6a with an average last frost of April 27. Plan your Cantaloupe planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Monroe County, OH?

Monroe County, Ohio is in USDA Hardiness Zone 6a. The average last spring frost is April 27 and first fall frost is October 20.

๐ŸŒฑ

Plan Your Garden with Confidence

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