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When to plant Watermelon in Lincoln Parish County,

Plant Watermelon in Lincoln Parish County, when soil hits 50°F — usually March 29. Continue planting through April 19 for the spring crop.

When to Plant Watermelon in Lincoln Parish, LA

Watermelon
Lincoln Parish, Louisiana Zone 8b June

Lincoln Parish, Louisiana gardeners: here's your June plan

If you only do a handful of things in the garden this June, make it these. They're sequenced around your zone's frost timing.

Avg. last frost March 22
Avg. first frost November 5
Soil temp (4") 82°F
Watering Low
Pest pressure High
Daylight 14.1 hrs
  1. Pick watermelon

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

Get ahead of July
  • 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.

Lincoln Parish, Louisiana is in USDA Zone 8b. The average last spring frost is March 22 and the first fall frost is November 5, giving you a growing season of approximately 228 days.

At an elevation of 77 feet, Lincoln Parish receives approximately 61.5 inches of rainfall annually with predominantly loam soil. Summer highs average 97°F, so Watermelon may need afternoon shade and extra watering during peak heat. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Watermelon root diseases.

Lincoln Parish, LA (Zone 8b) Long season
228 days
Last Spring Frost March 22
228 growing days
First Fall Frost November 5
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Lincoln Parish Soil Profile

Soil Type

Loam

Soil pH

5.9-6.7

Drainage

Well Drained

Watermelon Planting Risk Windows

Early Start (70% safe) ✓ Fits season (97 days to spare)
Start indoors: Feb 13 Transplant: Mar 27 🍅 Harvest: Jun 5 – Jul 24
Recommended (50%) ✓ Fits season (95 days to spare)
Start indoors: Feb 22 Transplant: Apr 5 🍅 Harvest: Jun 14 – Aug 2
Safe Start (90%) ✓ Fits season (91 days to spare)
Start indoors: Mar 18 Transplant: Apr 29 🍅 Harvest: Jul 8 – Aug 26

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 Lincoln Parish

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

Soil pH

Your soil pH (5.9–6.7) overlaps with Watermelon's range (6.0–7.5), though not a perfect match.

Soil Texture

The loam soil in Lincoln Parish is excellent for Watermelon — good drainage, moisture retention, and nutrient holding capacity.

Organic Matter

Organic matter is moderate (2.5%). Annual compost additions will help Watermelon.

How to Plant Watermelon

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

Succession Planting Watermelon

3
successive plantings in your 228-day season

Sow every 8 weeks. Last sowing by Jul 28 to harvest before frost.

Watermelon Water Budget

Plant needs
1.5″/week
Rainfall provides
1.1″/week
You supply
0.4″/week
Watering frequency 1-2 times/week
Season total 745 gal / 100 sq ft

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 5" 0" ❄️ Dormant
Feb 4.5" 0" ❄️ Dormant
Mar 6.5" 5.9" 0.6" 💧 Light watering
Apr 6.5" 4.9" 1.6" 💧 Light watering
May 6.5" 4.7" 1.8" 💧 Light watering
Jun 6.5" 5.4" 1.1" 💧 Light watering
Jul 6.5" 7.3" 0" ✅ Rainfall sufficient
Aug 6.5" 6.6" 0" ✅ Rainfall sufficient
Sep 6.5" 4.7" 1.8" 💧 Light watering
Oct 6.5" 3.5" 3" 💧 Light watering
Nov 6.5" 4.7" 1.8" 💧 Light watering
Dec 4.3" 0" ❄️ Dormant

Water needs are for active growing months only (Mar–Nov in Lincoln Parish). 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 ~1,934 GDD — county provides 5,187 GDD Excellent fit

Watermelon Planting Timeline — Lincoln Parish, LA

Watermelon Planting Calendar

Activity When Date Range
Start Indoors February 22 Feb 22 – Mar 8
Transplant Outdoors April 5 Apr 5 – Apr 19
Direct Sow March 29 Mar 29 – Apr 19
Harvest June 14 Jun 14 – Aug 2

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 Harvest
September
October
November
December
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Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1.5"/week · 1-2 times/week

📅 Days to Maturity

70–100 days

🧪 Soil pH

Needs 6–7.5 · Your soil: acceptable

🗺️ USDA Zone

Zone 8b

📆 Growing Season

228 days in Lincoln Parish

Growing Tips for Watermelon in Lincoln Parish

Direct sow Watermelon outdoors after March 22 in Lincoln Parish when soil has warmed and frost danger has passed.

With summer highs reaching 97°F in Lincoln Parish, provide afternoon shade for Watermelon and water deeply in the morning.

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 Lincoln Parish

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 Lincoln Parish, LA?

Lincoln Parish is in Zone 8b with an average last frost of March 22. Plan your Watermelon planting based on this frost date — see the calendar above for exact timing.

What planting zone is Lincoln Parish, LA?

Lincoln Parish, Louisiana is in USDA Hardiness Zone 8b. The average last spring frost is March 22 and first fall frost is November 5.

When should I plant Watermelon in Lincoln Parish County, ?

In Lincoln Parish County, , plant Watermelon after the last frost (around March 22) and before the first frost (around November 5). Best results when soil holds above 50°F.

What growing zone is Lincoln Parish County, for Watermelon?

Lincoln Parish County sits in USDA Zone 8b. Watermelon grows reliably in zones 4a through 11b, so it's a good fit here.

Can Watermelon grow in Lincoln Parish County's climate?

Yes — Watermelon grows well in Lincoln Parish County's temperate climate. Lincoln Parish County averages a 228-day frost-free season, with last frost around March 22 and first frost around November 5.

🌱

Your Lincoln Parish Garden Planner — Free

A 22-page printable planner built for Lincoln Parish (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 Lincoln Parish, LA. 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.