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When to Plant Cantaloupe in Plaquemines Parish, LA

Plaquemines Parish, Louisiana Zone 9b May

Your May planting checklist for Plaquemines Parish, Louisiana

May is a pivotal month for Plaquemines Parish, Louisiana gardens. Focus on these tasks first and you'll set up the rest of the season for success.

Avg. last frost February 6
Avg. first frost December 7
Soil temp (4") 78°F
Watering Low
Pest pressure High
Daylight 13.5 hrs
  1. Pick cantaloupe

    If you can't use it all right away, check the food-preservation section of your planner.

A few tasks this May that'll pay off in June
  • First harvests: cantaloupe

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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.

Plaquemines Parish, Louisiana is in USDA Zone 9b. The average last spring frost is February 6 and the first fall frost is December 7, giving you a growing season of approximately 304 days.

At an elevation of 386 feet, Plaquemines Parish receives approximately 50.2 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 99°F, so Cantaloupe may need afternoon shade and extra watering during peak heat. Sandy soil warms quickly in spring — great for early planting — but Cantaloupe will need more frequent watering and organic matter to retain nutrients. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Cantaloupe root diseases.

Plaquemines Parish, LA (Zone 9b) Year-round
304 days
Last Spring Frost February 6
304 growing days
First Fall Frost December 7

Plaquemines Parish Soil Profile

Soil Type

Sandy Loam

Soil pH

4.8-6

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (191 days to spare)
Transplant: Feb 8 🍅 Harvest: Apr 19 – May 24
Recommended (50%) ✓ Fits season (185 days to spare)
Transplant: Feb 20 🍅 Harvest: May 1 – Jun 5
Safe Start (90%) ✓ Fits season (170 days to spare)
Transplant: Mar 23 🍅 Harvest: Jun 1 – Jul 6

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 Plaquemines Parish

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

Soil pH

Your soil pH (4.8–6.0) is more acidic than Cantaloupe prefers (6.0–7.0). Add garden lime to raise pH.

Soil Texture

Sandy soil in Plaquemines Parish warms quickly in spring but drains fast. Cantaloupe will need more frequent watering and regular compost additions to retain nutrients.

Organic Matter

Organic matter is moderate (2.0%). Annual compost additions will help Cantaloupe.

How to Plant Cantaloupe

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

Succession Planting Cantaloupe

5
successive plantings in your 304-day season

Sow every 8 weeks. Last sowing by Sep 08 to harvest before frost.

Plant Water Budget

Plant needs
1.3″/week
Rainfall provides
0.7″/week
You supply
0.7″/week
Watering frequency 2-3 times/week
Season total 1,983 gal / 100 sq ft
Drought risk

Water stress score is 6/10 — 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 3.7" 0" ❄️ Dormant
Feb 5.6" 3.5" 2.1" 💧 Light watering
Mar 5.6" 4.4" 1.2" 💧 Light watering
Apr 5.6" 3.3" 2.3" 💧 Light watering
May 5.6" 4.2" 1.4" 💧 Light watering
Jun 5.6" 5" 0.6" 💧 Light watering
Jul 5.6" 5.9" 0" ✅ Rainfall sufficient
Aug 5.6" 5.2" 0.4" 💧 Light watering
Sep 5.6" 3.4" 2.2" 💧 Light watering
Oct 5.6" 3.3" 2.3" 💧 Light watering
Nov 5.6" 3.7" 1.9" 💧 Light watering
Dec 5.6" 4.5" 1.1" 💧 Light watering

Water needs are for active growing months only (Feb–Dec in Plaquemines Parish). Supplement amounts are based on average rainfall — 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" — 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.

Cantaloupe needs ~1,940 GDD — county provides 7,396 GDD Excellent fit

Cantaloupe Planting Timeline — Plaquemines Parish, LA

Cantaloupe Planting Calendar

Activity When Date Range
Transplant Outdoors February 20 Feb 20 – Mar 6
Harvest May 1 May 1 – Jun 5

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

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1.3"/week · 2-3 times/week

📅 Days to Maturity

70–90 days

🧪 Soil pH

Needs 6–7 · Your soil: too_acidic

🗺️ USDA Zone

Zone 9b

📆 Growing Season

304 days in Plaquemines Parish

Growing Tips for Cantaloupe in Plaquemines Parish

Direct sow Cantaloupe outdoors after February 06 in Plaquemines Parish when soil has warmed and frost danger has passed.

Sandy soil in Plaquemines Parish dries quickly — mulch Cantaloupe with 2-3 inches of straw and water deeply 2-3 times per week rather than lightly every day.

With summer highs reaching 99°F in Plaquemines Parish, provide afternoon shade for Cantaloupe and water deeply in the morning.

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 Plaquemines Parish, LA?

Plaquemines Parish is in Zone 9b with an average last frost of February 6. Plan your Cantaloupe planting based on this frost date — see the calendar above for exact timing.

What planting zone is Plaquemines Parish, LA?

Plaquemines Parish, Louisiana is in USDA Hardiness Zone 9b. The average last spring frost is February 6 and first fall frost is December 7.

🌱

Your Plaquemines Parish Garden Planner — Free

A 24-page printable planner built for Plaquemines Parish (Zone 9b). 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 Plaquemines Parish, LA. 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.