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When to Plant Melon in Cape May County, NJ

Cape May County, New Jersey Zone 7b June

Cape May County, New Jersey gardeners: here's your June plan

June is a pivotal month for Cape May County, New Jersey gardens. Focus on these tasks first and you'll set up the rest of the season for success.

Avg. last frost March 29
Avg. first frost November 11
Soil temp (4") 78°F
Watering Low
Pest pressure High
Daylight 14.7 hrs
  1. Collect melon at their peak

    Check every 1–2 days. Many of these get tough or go to seed if you wait too long.

Coming up in July — start thinking about
  • First harvests: melon

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Melons are warm-season vine crops that produce sweet, juicy fruits in many varieties including muskmelon and honeydew. They need a long, hot growing season.

Cape May County, New Jersey is in USDA Zone 7b. The average last spring frost is March 29 and the first fall frost is November 11, giving you a growing season of approximately 227 days.

At an elevation of 928 feet, Cape May County receives approximately 44.7 inches of rainfall annually with predominantly silt loam soil. Summer highs average 94°F, providing good warmth for Melon during the growing season.

Cape May County, NJ (Zone 7b) Long season
227 days
Last Spring Frost March 29
227 growing days
First Fall Frost November 11

Cape May County Soil Profile

Soil Type

Silt Loam

Soil pH

4.9-6.5

Drainage

Well Drained

Melon Planting Risk Windows

Early Start (70% safe) ✓ Fits season (94 days to spare)
Start indoors: Feb 24 Transplant: Apr 7 🍅 Harvest: Jun 16 – Aug 4
Recommended (50%) ✓ Fits season (94 days to spare)
Start indoors: Mar 1 Transplant: Apr 12 🍅 Harvest: Jun 21 – Aug 9
Safe Start (90%) ✓ Fits season (96 days to spare)
Start indoors: Mar 17 Transplant: Apr 28 🍅 Harvest: Jul 7 – Aug 25

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 Cape May County

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

Soil pH

Your soil pH (4.9–6.5) is more acidic than Melon prefers (6.0–7.0). Add garden lime to raise pH.

Soil Texture

The silt loam soil in Cape May County is excellent for Melon — good drainage, moisture retention, and nutrient holding capacity.

Drainage

Drainage is adequate for Melon.

Organic Matter

Organic matter is moderate (3.1%). Annual compost additions will help Melon.

How to Plant Melon

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

Succession Planting Melon

3
successive plantings in your 227-day season

Sow every 8 weeks. Last sowing by Aug 03 to harvest before frost.

Melon Water Budget

Plant needs
1.0″/week
Rainfall provides
0.8″/week
Watering frequency Natural rainfall sufficient
Season total 0 gal / 100 sq ft

Monthly Watering Guide for Melon

Melon needs approximately 1 inches of water per week (4.3" per month). Here's how your county's rainfall compares month by month.

Month Melon Needs Rainfall You Supplement Action
Jan 2.9" 0" ❄️ Dormant
Feb 2.9" 0" ❄️ Dormant
Mar 4.3" 3.5" 0.8" 💧 Light watering
Apr 4.3" 4.2" 0.1" 💧 Light watering
May 4.3" 4.2" 0.1" 💧 Light watering
Jun 4.3" 4.2" 0.1" 💧 Light watering
Jul 4.3" 3.8" 0.5" 💧 Light watering
Aug 4.3" 4.5" 0" ✅ Rainfall sufficient
Sep 4.3" 4.1" 0.2" 💧 Light watering
Oct 4.3" 3.7" 0.6" 💧 Light watering
Nov 4.3" 3.2" 1.1" 💧 Light watering
Dec 3.4" 0" ❄️ Dormant

Water needs are for active growing months only (Mar–Nov in Cape May County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.

Melon 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" — every day above 50°F 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.

Melon needs ~1,742 GDD — county provides 4,653 GDD Excellent fit

Melon Planting Timeline — Cape May County, NJ

Melon Planting Calendar

Activity When Date Range
Start Indoors March 1 Mar 1 – Mar 15
Transplant Outdoors April 12 Apr 12 – Apr 26
Direct Sow April 5 Apr 5 – Apr 26
Harvest June 21 Jun 21 – Aug 9

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

Month-by-Month Timeline

MonthActivities
January
February
March Start Indoors
April Transplant Outdoors Direct Sow
May
June Harvest
July Harvest
August Harvest
September
October
November
December

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1"/week · Natural rainfall sufficient

📅 Days to Maturity

70–100 days

🧪 Soil pH

Needs 6–7 · Your soil: too_acidic

🗺️ USDA Zone

Zone 7b

📆 Growing Season

227 days in Cape May County

Growing Tips for Melon in Cape May County

Direct sow Melon outdoors after March 29 in Cape May County when soil has warmed and frost danger has passed.

Common pests for Melon 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 before transplanting. Plant on raised mounds of compost-enriched soil. Reduce watering as fruits ripen to concentrate sweetness.

Companion Planting

Good Companions

Avoid Planting Near

  • Potatoes
  • Cucumber

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Melon in Cape May County, NJ?

Cape May County is in Zone 7b with an average last frost of March 29. Plan your Melon planting based on this frost date — see the calendar above for exact timing.

What planting zone is Cape May County, NJ?

Cape May County, New Jersey is in USDA Hardiness Zone 7b. The average last spring frost is March 29 and first fall frost is November 11.

🌱

Your Cape May County Garden Planner — Free

A 22-page printable planner built for Cape May County (Zone 7b). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.

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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 Cape May County, NJ. Local conditions may vary. Last updated: June 2026.

Sources & credits

Every number on this page traces back to a primary horticulture or government data source. Click through to verify.