Blog

When to Plant Bitter Melon in Haywood County, TN

Haywood County, Tennessee Zone 8a May

Your May game plan for Haywood County, Tennessee

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

Avg. last frost April 1
Avg. first frost October 29
Soil temp (4") 58°F
Watering Low
Pest pressure Moderate
Daylight 13.9 hrs
  1. Time to start bitter melon inside

    A seed-starting mix and a sunny window (or a grow light) are all you need. Keep soil warm — around 70°F — for fast germination.

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

Instant PDF download. No spam, unsubscribe any time.

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.

Haywood County, Tennessee is in USDA Zone 8a. The average last spring frost is April 1 and the first fall frost is October 29, giving you a growing season of approximately 211 days.

At an elevation of 3,782 feet, Haywood County receives approximately 51.1 inches of rainfall annually with predominantly silt loam soil. Summer highs average 93°F, providing good warmth for Bitter Melon during the growing season. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Bitter Melon root diseases.

Haywood County, TN (Zone 8a) Long season
211 days
Last Spring Frost April 1
211 growing days
First Fall Frost October 29
Share this guide:

Haywood County Soil Profile

Soil Type

Silt Loam

Soil pH

5.4-7.1

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (93 days to spare)
Start indoors: Feb 5 Transplant: Apr 9 🍅 Harvest: Jun 11 – Jul 23
Recommended (50%) ✓ Fits season (92 days to spare)
Start indoors: Feb 11 Transplant: Apr 15 🍅 Harvest: Jun 17 – Jul 29
Safe Start (90%) ✓ Fits season (97 days to spare)
Start indoors: Feb 27 Transplant: May 1 🍅 Harvest: Jul 3 – Aug 14

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 Haywood County

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

Soil pH

Your soil pH (5.4–7.1) overlaps with Bitter Melon's range (6.0–7.0), though not a perfect match.

Soil Texture

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

Organic Matter

Organic matter is moderate (3.0%). 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

4
successive plantings in your 211-day season

Sow every 6.9 weeks. Last sowing by Jul 31 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 4.1" 0" ❄️ Dormant
Feb 4.5" 0" ❄️ Dormant
Mar 5.4" 0" ❄️ Dormant
Apr 4.3" 4" 0.3" 💧 Light watering
May 4.3" 3.8" 0.5" 💧 Light watering
Jun 4.3" 3.9" 0.4" 💧 Light watering
Jul 4.3" 4.7" 0" ✅ Rainfall sufficient
Aug 4.3" 4.7" 0" ✅ Rainfall sufficient
Sep 4.3" 4.4" 0" ✅ Rainfall sufficient
Oct 4.3" 3.3" 1" 💧 Light watering
Nov 4.1" 0" ❄️ Dormant
Dec 4.2" 0" ❄️ Dormant

Water needs are for active growing months only (Apr–Oct in Haywood 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 ~1,481 GDD — county provides 4,167 GDD Excellent fit

Bitter Melon Planting Timeline — Haywood County, TN

Bitter Melon Planting Calendar

Activity When Date Range
Start Indoors February 11 Feb 11 – Feb 25
Transplant Outdoors April 15 Apr 15 – Apr 29
Direct Sow April 8 Apr 8 – Apr 29
Harvest June 17 Jun 17 – Jul 29

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

Month-by-Month Timeline

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

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: acceptable

🗺️ USDA Zone

Zone 8a

📆 Growing Season

211 days in Haywood County

Growing Tips for Bitter Melon in Haywood County

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

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 Haywood County, TN?

Haywood County is in Zone 8a with an average last frost of April 1. Plan your Bitter Melon planting based on this frost date — see the calendar above for exact timing.

What planting zone is Haywood County, TN?

Haywood County, Tennessee is in USDA Hardiness Zone 8a. The average last spring frost is April 1 and first fall frost is October 29.

🌱

Your Haywood County Garden Planner — Free

A 24-page printable planner built for Haywood County (Zone 8a). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.

Instant PDF download. No spam, unsubscribe any time.

Data sources: USDA Plant Hardiness Zone Map (2023), NOAA 30-Year Climate Normals. Frost dates are based on 50% probability averages for Haywood County, TN. 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.