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When to Plant Honeydew in Hillsborough County, FL

Hillsborough County, Florida Zone 10a May

This month in Hillsborough 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 January 25
Avg. first frost December 20
Soil temp (4") 79°F
Watering Low
Pest pressure High
Daylight 13.4 hrs
  1. Basket week: honeydew

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  • First harvests: honeydew

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Honeydew melons have smooth, pale green rinds and sweet, light green flesh. They require a long, warm growing season and are slightly more heat-tolerant than cantaloupe.

Hillsborough County, Florida is in USDA Zone 10a. The average last spring frost is January 25 and the first fall frost is December 20, giving you a growing season of approximately 329 days.

At an elevation of 63 feet, Hillsborough County receives approximately 54.4 inches of rainfall annually with predominantly sand soil. Summer highs average 98°F, so Honeydew may need afternoon shade and extra watering during peak heat. Sandy soil warms quickly in spring — great for early planting — but Honeydew will need more frequent watering and organic matter to retain nutrients. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Honeydew root diseases.

Hillsborough County, FL (Zone 10a) Year-round
329 days
Last Spring Frost January 25
329 growing days
First Fall Frost December 20

Hillsborough County Soil Profile

Soil Type

Sand

Soil pH

4.9-5.9

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (186 days to spare)
Transplant: Jan 31 🍅 Harvest: Apr 25 – Jun 6
Recommended (50%) ✓ Fits season (189 days to spare)
Transplant: Feb 8 🍅 Harvest: May 3 – Jun 14
Safe Start (90%) ✓ Fits season (165 days to spare)
Transplant: Mar 9 🍅 Harvest: Jun 1 – Jul 13

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 Hillsborough County

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

Soil pH

Your soil pH (4.9–5.9) is more acidic than Honeydew prefers (6.0–7.0). Add garden lime to raise pH.

Soil Texture

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

Drainage

Drainage is adequate for Honeydew.

Organic Matter

Organic matter is low (1.5%). Add 2-3 inches of compost before planting Honeydew.

How to Plant Honeydew

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

Succession Planting Honeydew

4
successive plantings in your 329-day season

Sow every 9.1 weeks. Last sowing by Sep 01 to harvest before frost.

Plant Water Budget

Plant needs
1.0″/week
Rainfall provides
0.7″/week
You supply
0.7″/week
Watering frequency 2-3 times/week
Season total 2,142 gal / 100 sq ft
Drought risk

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

Monthly Watering Guide for Honeydew

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

Month Honeydew Needs Rainfall You Supplement Action
Jan 4.3" 2.3" 2" 💧 Light watering
Feb 4.3" 2.7" 1.6" 💧 Light watering
Mar 4.3" 2.9" 1.4" 💧 Light watering
Apr 4.3" 2.1" 2.2" 🚿 Regular watering
May 4.3" 3.8" 0.5" 💧 Light watering
Jun 4.3" 8.1" 0" ✅ Rainfall sufficient
Jul 4.3" 8" 0" ✅ Rainfall sufficient
Aug 4.3" 8" 0" ✅ Rainfall sufficient
Sep 4.3" 7.7" 0" ✅ Rainfall sufficient
Oct 4.3" 4.5" 0" ✅ Rainfall sufficient
Nov 4.3" 2" 2.3" 🚿 Regular watering
Dec 4.3" 2.4" 1.9" 💧 Light watering

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

Honeydew 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.

Honeydew needs ~2,232 GDD — county provides 7,755 GDD Excellent fit

Honeydew Planting Timeline — Hillsborough County, FL

Honeydew Planting Calendar

Activity When Date Range
Transplant Outdoors February 8 Feb 8 – Feb 22
Harvest May 3 May 3 – Jun 14

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

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1"/week · 2-3 times/week

📅 Days to Maturity

80–110 days

🧪 Soil pH

Needs 6–7 · Your soil: too_acidic

🗺️ USDA Zone

Zone 10a

📆 Growing Season

329 days in Hillsborough County

Growing Tips for Honeydew in Hillsborough County

Direct sow Honeydew outdoors after January 25 in Hillsborough County when soil has warmed and frost danger has passed.

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

With summer highs reaching 98°F in Hillsborough County, provide afternoon shade for Honeydew and water deeply in the morning.

Common pests for Honeydew 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 4 weeks before transplanting. Plant on raised mounds of rich soil. Harvest when the blossom end gives slightly when pressed and the skin turns creamy yellow.

Companion Planting

Good Companions

Avoid Planting Near

  • Potatoes

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Honeydew in Hillsborough County, FL?

Hillsborough County is in Zone 10a with an average last frost of January 25. Plan your Honeydew planting based on this frost date — see the calendar above for exact timing.

What planting zone is Hillsborough County, FL?

Hillsborough County, Florida is in USDA Hardiness Zone 10a. The average last spring frost is January 25 and first fall frost is December 20.

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Your Hillsborough County Garden Planner — Free

A 24-page printable planner built for Hillsborough County (Zone 10a). 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 Hillsborough 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.