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When to Plant Watermelon in Hampton City, VA

Hampton City, Virginia Zone 8b May

Your May planting checklist for Hampton City, Virginia

May rewards gardeners who work with the weather, not against it. Here's how to stay in step this month in Hampton City, Virginia.

Avg. last frost March 19
Avg. first frost November 18
Soil temp (4") 67°F
Watering Moderate
Pest pressure Moderate
Daylight 14 hrs
To set up a strong June, finish these tasks
  • First harvests: watermelon

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Watermelon is a sprawling vine crop that produces sweet, juicy fruits in hot weather. Varieties range from personal-sized icebox types to 50-pound giants.

Hampton City, Virginia is in USDA Zone 8b. The average last spring frost is March 19 and the first fall frost is November 18, giving you a growing season of approximately 244 days.

At an elevation of 299 feet, Hampton City receives approximately 43.3 inches of rainfall annually with predominantly silt loam soil. Summer highs average 94°F, providing good warmth for Watermelon during the growing season.

Hampton City, VA (Zone 8b) Long season
244 days
Last Spring Frost March 19
244 growing days
First Fall Frost November 18
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Hampton City Soil Profile

Soil Type

Silt Loam

Soil pH

5.7-6.7

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (110 days to spare)
Start indoors: Feb 13 Transplant: Mar 27 🍅 Harvest: Jun 5 – Jul 24
Recommended (50%) ✓ Fits season (111 days to spare)
Start indoors: Feb 19 Transplant: Apr 2 🍅 Harvest: Jun 11 – Jul 30
Safe Start (90%) ✓ Fits season (103 days to spare)
Start indoors: Mar 15 Transplant: Apr 26 🍅 Harvest: Jul 5 – Aug 23

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 Hampton City

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

Soil pH

Your soil pH (5.7–6.7) overlaps with Watermelon's range (6.0–7.5), though not a perfect match.

Soil Texture

The silt loam soil in Hampton City is excellent for Watermelon — good drainage, moisture retention, and nutrient holding capacity.

Organic Matter

Organic matter is moderate (3.3%). Annual compost additions will help Watermelon.

How to Plant Watermelon

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

Succession Planting Watermelon

4
successive plantings in your 244-day season

Sow every 8 weeks. Last sowing by Aug 10 to harvest before frost.

Plant Water Budget

Plant needs
1.5″/week
Rainfall provides
0.8″/week
You supply
0.9″/week
Watering frequency 2-3 times/week
Season total 1,967 gal / 100 sq ft
Drought risk

Water stress score is 6/10 — consider drought-tolerant varieties and mulching

Monthly Watering Guide for Watermelon

Watermelon needs approximately 1.5 inches of water per week (6.5" per month). Here's how your county's rainfall compares month by month.

Month Watermelon Needs Rainfall You Supplement Action
Jan 4" 0" ❄️ Dormant
Feb 3.3" 0" ❄️ Dormant
Mar 6.5" 3.7" 2.8" 💧 Light watering
Apr 6.5" 2.9" 3.6" 🚿 Regular watering
May 6.5" 3.2" 3.3" 🚿 Regular watering
Jun 6.5" 4.3" 2.2" 💧 Light watering
Jul 6.5" 4.9" 1.6" 💧 Light watering
Aug 6.5" 3.7" 2.8" 💧 Light watering
Sep 6.5" 3.6" 2.9" 💧 Light watering
Oct 6.5" 2.7" 3.8" 🚿 Regular watering
Nov 6.5" 3" 3.5" 🚿 Regular watering
Dec 4" 0" ❄️ Dormant

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

Watermelon 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.

Watermelon needs ~1,742 GDD — county provides 5,002 GDD Excellent fit

Watermelon Planting Timeline — Hampton City, VA

Watermelon Planting Calendar

Activity When Date Range
Start Indoors February 19 Feb 19 – Mar 5
Transplant Outdoors April 2 Apr 2 – Apr 16
Direct Sow March 26 Mar 26 – Apr 16
Harvest June 11 Jun 11 – Jul 30

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

Month-by-Month Timeline

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

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1.5"/week · 2-3 times/week

📅 Days to Maturity

70–100 days

🧪 Soil pH

Needs 6–7.5 · Your soil: acceptable

🗺️ USDA Zone

Zone 8b

📆 Growing Season

244 days in Hampton City

Growing Tips for Watermelon in Hampton City

Direct sow Watermelon outdoors after March 19 in Hampton City when soil has warmed and frost danger has passed.

Common pests for Watermelon 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 after soil is warm. Plant on mounds with plenty of space. Check ripeness by looking for a yellow ground spot and dull thump when tapped.

Recommended Watermelon Varieties for Hampton City

Full-size melons that thrive with your long season

Crimson Sweet (85d) Charleston Gray (85d) Moon and Stars (95d)

Companion Planting

Good Companions

Avoid Planting Near

  • Potatoes

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Watermelon in Hampton City, VA?

Hampton City is in Zone 8b with an average last frost of March 19. Plan your Watermelon planting based on this frost date — see the calendar above for exact timing.

What planting zone is Hampton City, VA?

Hampton City, Virginia is in USDA Hardiness Zone 8b. The average last spring frost is March 19 and first fall frost is November 18.

🌱

Your Hampton City Garden Planner — Free

A 24-page printable planner built for Hampton City (Zone 8b). 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 Hampton City, VA. Local conditions may vary. Last updated: May 2026.

Sources & credits

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