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When to Plant Bitter Melon in Glades County, FL

Glades County, Florida Zone 10a May

May in the garden — Glades County, Florida

Here's what deserves your attention in Glades County, Florida this month. Everything below is tailored to Zone 10a and timed around your local frost dates.

Avg. last frost February 1
Avg. first frost December 19
Soil temp (4") 77°F
Watering Moderate
Pest pressure High
Daylight 13.3 hrs
  1. Start harvesting bitter melon

    The more you pick, the more the plant produces. Letting fruit overripen tells the plant it's time to stop.

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Bitter melon is a tropical vine producing warty, bitter fruits used in Asian and Indian cuisine. The intense bitterness is prized for its culinary and health properties.

Glades County, Florida is in USDA Zone 10a. The average last spring frost is February 1 and the first fall frost is December 19, giving you a growing season of approximately 321 days.

At an elevation of 434 feet, Glades County receives approximately 54.3 inches of rainfall annually with predominantly sand soil. Summer highs average 101°F, so Bitter Melon may need afternoon shade and extra watering during peak heat. Sandy soil warms quickly in spring — great for early planting — but Bitter Melon will need more frequent watering and organic matter to retain nutrients. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Bitter Melon root diseases.

Glades County, FL (Zone 10a) Year-round
321 days
Last Spring Frost February 1
321 growing days
First Fall Frost December 19
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Glades County Soil Profile

Soil Type

Sand

Soil pH

5.1-6.3

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (207 days to spare)
Start indoors: Dec 11 Transplant: Jan 29 🍅 Harvest: Apr 2 – May 14
Recommended (50%) ✓ Fits season (209 days to spare)
Start indoors: Dec 21 Transplant: Feb 8 🍅 Harvest: Apr 12 – May 24
Safe Start (90%) ✓ Fits season (186 days to spare)
Start indoors: Jan 18 Transplant: Mar 8 🍅 Harvest: May 10 – Jun 21

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 Glades County

How your county's soil matches Bitter Melon's growing requirements.

Soil pH

Your soil pH (5.1–6.3) is more acidic than Bitter Melon prefers (6.0–7.0). Add garden lime to raise pH.

Soil Texture

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

Drainage

Drainage is adequate for Bitter Melon.

Organic Matter

Organic matter is low (1.6%). Add 2-3 inches of compost before planting Bitter Melon.

How to Plant Bitter Melon

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

Succession Planting Bitter Melon

6
successive plantings in your 321-day season

Sow every 6.9 weeks. Last sowing by Sep 20 to harvest before frost.

Plant Water Budget

Plant needs
1.0″/week
Rainfall provides
0.7″/week
You supply
0.6″/week
Watering frequency 1-2 times/week
Season total 1,696 gal / 100 sq ft

Monthly Watering Guide for Bitter Melon

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

Month Bitter Melon Needs Rainfall You Supplement Action
Jan 2.7" 0" ❄️ Dormant
Feb 4.3" 2.5" 1.8" 💧 Light watering
Mar 4.3" 2.9" 1.4" 💧 Light watering
Apr 4.3" 2.7" 1.6" 💧 Light watering
May 4.3" 3.5" 0.8" 💧 Light watering
Jun 4.3" 8" 0" ✅ Rainfall sufficient
Jul 4.3" 8.3" 0" ✅ Rainfall sufficient
Aug 4.3" 7.7" 0" ✅ Rainfall sufficient
Sep 4.3" 7.2" 0" ✅ Rainfall sufficient
Oct 4.3" 4.2" 0.1" 💧 Light watering
Nov 4.3" 2.3" 2" 💧 Light watering
Dec 4.3" 2.3" 2" 💧 Light watering

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

Bitter Melon 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.

Bitter Melon needs ~1,931 GDD — county provides 8,291 GDD Excellent fit

Bitter Melon Planting Timeline — Glades County, FL

Bitter Melon Planting Calendar

Activity When Date Range
Start Indoors December 21 Dec 21 – Jan 4
Transplant Outdoors February 8 Feb 8 – Feb 22
Direct Sow February 1 Feb 1 – Feb 22
Harvest April 12 Apr 12 – May 24

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

Month-by-Month Timeline

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

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1"/week · 1-2 times/week

📅 Days to Maturity

60–90 days

🧪 Soil pH

Needs 6–7 · Your soil: too_acidic

🗺️ USDA Zone

Zone 10a

📆 Growing Season

321 days in Glades County

Growing Tips for Bitter Melon in Glades County

Direct sow Bitter Melon outdoors after February 01 in Glades County when soil has warmed and frost danger has passed.

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

With summer highs reaching 101°F in Glades County, provide afternoon shade for Bitter Melon and water deeply in the morning.

Common pests for Bitter Melon 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 last frost. Provide a trellis for climbing. Harvest fruits while still green and firm. Reduce bitterness by salting sliced fruit before cooking.

Companion Planting

Good Companions

Avoid Planting Near

  • Potatoes

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Bitter Melon in Glades County, FL?

Glades County is in Zone 10a with an average last frost of February 1. Plan your Bitter Melon planting based on this frost date — see the calendar above for exact timing.

What planting zone is Glades County, FL?

Glades County, Florida is in USDA Hardiness Zone 10a. The average last spring frost is February 1 and first fall frost is December 19.

🌱

Your Glades County Garden Planner — Free

A 24-page printable planner built for Glades 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 Glades 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.