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When to Plant Cantaloupe in Palm Beach County, FL

Palm Beach County, Florida Zone 10b May

May to-do list for Palm Beach County, Florida

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

Avg. last frost February 17
Soil temp (4") 81°F
Watering Moderate
Pest pressure High
Daylight 13.3 hrs
  1. Basket week: cantaloupe

    Morning harvests are best — cooler temperatures mean crisper produce and longer fridge life.

Get ahead of 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.

Palm Beach County, Florida is in USDA Zone 10b. The average last spring frost is February 17 and the first fall frost is April 15, giving you a growing season of approximately 57 days.

At an elevation of 355 feet, Palm Beach County receives approximately 50 inches of rainfall annually with predominantly sand soil. Summer highs average 93°F, providing good warmth for Cantaloupe during the growing season. Sandy soil warms quickly in spring — great for early planting — but Cantaloupe will need more frequent watering and organic matter to retain nutrients.

Palm Beach County, FL (Zone 10b) Very short season
57 days
Last Spring Frost February 17
57 growing days
First Fall Frost April 15

Palm Beach County Soil Profile

Soil Type

Sand

Soil pH

5.1-5.9

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (128 days to spare)
Transplant: Feb 24 🍅 Harvest: May 5 – Jun 9
Recommended (50%) ✓ Fits season (121 days to spare)
Transplant: Mar 3 🍅 Harvest: May 12 – Jun 16
Safe Start (90%) ✓ Fits season (114 days to spare)
Transplant: Mar 10 🍅 Harvest: May 19 – Jun 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 Palm Beach County

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

Soil pH

Your soil pH (5.1–5.9) is more acidic than Cantaloupe prefers (6.0–7.0). Add garden lime to raise pH.

Soil Texture

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

Drainage

Drainage is adequate for Cantaloupe.

Organic Matter

Organic matter is low (1.3%). Add 2-3 inches of compost before planting Cantaloupe.

How to Plant Cantaloupe

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

Plant Water Budget

Plant needs
1.3″/week
Rainfall provides
0.6″/week
You supply
1.1″/week
Watering frequency 2-3 times/week
Season total 3,621 gal / 100 sq ft

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 2.4" 0" ❄️ Dormant
Feb 5.6" 2.3" 3.3" 🚿 Regular watering
Mar 5.6" 3.2" 2.4" 💧 Light watering
Apr 5.6" 2.4" 3.2" 🚿 Regular watering
May 5.6" 3.3" 2.3" 💧 Light watering
Jun 5.6" 6.2" 0" ✅ Rainfall sufficient
Jul 5.6" 7.3" 0" ✅ Rainfall sufficient
Aug 5.6" 7.4" 0" ✅ Rainfall sufficient
Sep 5.6" 7" 0" ✅ Rainfall sufficient
Oct 5.6" 4.2" 1.4" 💧 Light watering
Nov 2" 0" ❄️ Dormant
Dec 2.2" 0" ❄️ Dormant

Water needs are for active growing months only (Feb–Oct in Palm Beach County). 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 ~1,580 GDD — county provides 7,208 GDD Excellent fit

Cantaloupe Planting Timeline — Palm Beach County, FL

Cantaloupe Planting Calendar

Activity When Date Range
Transplant Outdoors March 3 Mar 3 – Mar 17
Harvest May 12 May 12 – Jun 16

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

Month-by-Month Timeline

MonthActivities
January
February
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 10b

📆 Growing Season

57 days in Palm Beach County

Growing Tips for Cantaloupe in Palm Beach County

Direct sow Cantaloupe outdoors after February 17 in Palm Beach County when soil has warmed and frost danger has passed.

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

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 Palm Beach County, FL?

Palm Beach County is in Zone 10b with an average last frost of February 17. Plan your Cantaloupe planting based on this frost date — see the calendar above for exact timing.

What planting zone is Palm Beach County, FL?

Palm Beach County, Florida is in USDA Hardiness Zone 10b. The average last spring frost is February 17 and first fall frost is .

🌱

Your Palm Beach County Garden Planner — Free

A 24-page printable planner built for Palm Beach County (Zone 10b). 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 Palm Beach County, FL. 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.