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When to Plant Bitter Melon in Henry County, AL

Henry County, Alabama Zone 8b May

May in the garden — Henry County, Alabama

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 March 9
Avg. first frost November 17
Soil temp (4") 74°F
Watering Low
Pest pressure High
Daylight 13.6 hrs
  1. Collect bitter melon at their peak

    This is the payoff month. Bring a basket, bring a friend, and get into the beds.

Coming up in June — start thinking about
  • First harvests: bitter melon

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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.

Henry County, Alabama is in USDA Zone 8b. The average last spring frost is March 9 and the first fall frost is November 17, giving you a growing season of approximately 253 days.

At an elevation of 195 feet, Henry County receives approximately 61.1 inches of rainfall annually with predominantly clay loam soil. Summer highs average 91°F, providing good warmth for Bitter Melon during the growing season. Clay soil retains moisture well for Bitter Melon, but amend with compost to improve drainage and prevent root rot. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Bitter Melon root diseases.

Henry County, AL (Zone 8b) Long season
253 days
Last Spring Frost March 9
253 growing days
First Fall Frost November 17

Henry County Soil Profile

Soil Type

Clay Loam

Soil pH

5.7-6.2

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (134 days to spare)
Start indoors: Jan 13 Transplant: Mar 17 🍅 Harvest: May 19 – Jun 30
Recommended (50%) ✓ Fits season (134 days to spare)
Start indoors: Jan 19 Transplant: Mar 23 🍅 Harvest: May 25 – Jul 6
Safe Start (90%) ✓ Fits season (134 days to spare)
Start indoors: Feb 9 Transplant: Apr 13 🍅 Harvest: Jun 15 – Jul 27

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 Henry County

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

Soil pH

Your soil pH (5.7–6.2) is more acidic than Bitter Melon prefers (6.0–7.0). Add garden lime to raise pH.

Soil Texture

The clay loam soil in Henry County is excellent for Bitter Melon — good drainage, moisture retention, and nutrient holding capacity.

Organic Matter

Organic matter is moderate (2.2%). Annual compost additions will help Bitter Melon.

How to Plant Bitter Melon

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

Succession Planting Bitter Melon

5
successive plantings in your 253-day season

Sow every 6.9 weeks. Last sowing by Aug 19 to harvest before frost.

Plant Water Budget

Plant needs
1.0″/week
Rainfall provides
1.0″/week
Watering frequency Natural rainfall sufficient
Season total 0 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 5.5" 0" ❄️ Dormant
Feb 4.3" 0" ❄️ Dormant
Mar 4.3" 6.2" 0" ✅ Rainfall sufficient
Apr 4.3" 4.1" 0.2" 💧 Light watering
May 4.3" 5.4" 0" ✅ Rainfall sufficient
Jun 4.3" 4.6" 0" ✅ Rainfall sufficient
Jul 4.3" 6.1" 0" ✅ Rainfall sufficient
Aug 4.3" 5.9" 0" ✅ Rainfall sufficient
Sep 4.3" 5" 0" ✅ Rainfall sufficient
Oct 4.3" 4.2" 0.1" 💧 Light watering
Nov 4.3" 4.9" 0" ✅ Rainfall sufficient
Dec 4.8" 0" ❄️ Dormant

Water needs are for active growing months only (Mar–Nov in Henry 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 ~1,369 GDD — county provides 4,617 GDD Excellent fit

Bitter Melon Planting Timeline — Henry County, AL

Bitter Melon Planting Calendar

Activity When Date Range
Start Indoors January 19 Jan 19 – Feb 2
Transplant Outdoors March 23 Mar 23 – Apr 6
Direct Sow March 16 Mar 16 – Apr 6
Harvest May 25 May 25 – Jul 6

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

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1"/week · Natural rainfall sufficient

📅 Days to Maturity

60–90 days

🧪 Soil pH

Needs 6–7 · Your soil: too_acidic

🗺️ USDA Zone

Zone 8b

📆 Growing Season

253 days in Henry County

Growing Tips for Bitter Melon in Henry County

Direct sow Bitter Melon outdoors after March 09 in Henry County when soil has warmed and frost danger has passed.

With Henry County's clay soil (27% clay), work in 3-4 inches of compost before planting Bitter Melon. Avoid tilling when soil is wet to prevent compaction.

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 Henry County, AL?

Henry County is in Zone 8b with an average last frost of March 9. Plan your Bitter Melon planting based on this frost date — see the calendar above for exact timing.

What planting zone is Henry County, AL?

Henry County, Alabama is in USDA Hardiness Zone 8b. The average last spring frost is March 9 and first fall frost is November 17.

🌱

Your Henry County Garden Planner — Free

A 24-page printable planner built for Henry County (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 Henry County, AL. 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.