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When to Plant Hot Peppers in Madison County, TN

Madison County, Tennessee Zone 7b May

Your May gardening checklist

Here's what deserves your attention in Madison County, Tennessee this month. Everything below is tailored to Zone 7b and timed around your local frost dates.

Avg. last frost April 2
Avg. first frost October 28
Soil temp (4") 66°F
Watering Low
Pest pressure Moderate
Daylight 13.9 hrs
A few tasks this May that'll pay off in June
  • Starting indoors: hot peppers
  • First harvests: hot peppers

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Hot peppers range from mildly spicy jalapenos to scorching superhots. They require long, warm growing seasons and produce capsaicin that gives them their heat.

Madison County, Tennessee is in USDA Zone 7b. The average last spring frost is April 2 and the first fall frost is October 28, giving you a growing season of approximately 209 days.

At an elevation of 1,852 feet, Madison County receives approximately 46.8 inches of rainfall annually with predominantly silt loam soil. Summer highs average 89°F, providing good warmth for Hot Peppers during the growing season.

Madison County, TN (Zone 7b) Long season
209 days
Last Spring Frost April 2
209 growing days
First Fall Frost October 28

Madison County Soil Profile

Soil Type

Silt Loam

Soil pH

5.3-7

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (29 days to spare)
Start indoors: Jan 22 Transplant: Apr 9 🍅 Harvest: Jun 18 – Sep 24
Recommended (50%) ✓ Fits season (27 days to spare)
Start indoors: Jan 29 Transplant: Apr 16 🍅 Harvest: Jun 25 – Oct 1
Safe Start (90%) ✓ Fits season (27 days to spare)
Start indoors: Feb 14 Transplant: May 2 🍅 Harvest: Jul 11 – Oct 17

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 Madison County

How your county's soil matches Hot Peppers's growing requirements.

Soil pH

Your soil pH (5.3–7.0) overlaps with Hot Peppers's range (6.0–7.0), though not a perfect match.

Soil Texture

The silt loam soil in Madison County is excellent for Hot Peppers — good drainage, moisture retention, and nutrient holding capacity.

Organic Matter

Organic matter is moderate (3.2%). Annual compost additions will help Hot Peppers.

How to Plant Hot Peppers

1"
Planting Depth
15"
Between Plants
24"
Between Rows

Succession Planting Hot Peppers

3
successive plantings in your 209-day season

Sow every 8 weeks. Last sowing by Jun 30 to harvest before frost.

Plant Water Budget

Plant needs
1.0″/week
Rainfall provides
0.9″/week
You supply
0.1″/week
Watering frequency Only during dry spells
Season total 111 gal / 100 sq ft

Monthly Watering Guide for Hot Peppers

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

Month Hot Peppers Needs Rainfall You Supplement Action
Jan 3.6" 0" ❄️ Dormant
Feb 3.9" 0" ❄️ Dormant
Mar 4.8" 0" ❄️ Dormant
Apr 4.3" 3.6" 0.7" 💧 Light watering
May 4.3" 4" 0.3" 💧 Light watering
Jun 4.3" 4.8" 0" ✅ Rainfall sufficient
Jul 4.3" 4.9" 0" ✅ Rainfall sufficient
Aug 4.3" 4.1" 0.2" 💧 Light watering
Sep 4.3" 3.3" 1" 💧 Light watering
Oct 4.3" 2.7" 1.6" 💧 Light watering
Nov 3.4" 0" ❄️ Dormant
Dec 3.8" 0" ❄️ Dormant

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

Hot Peppers 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.

Hot Peppers needs ~1,591 GDD — county provides 3,500 GDD Excellent fit

Hot Peppers Planting Timeline — Madison County, TN

Hot Peppers Planting Calendar

Activity When Date Range
Start Indoors January 29 Jan 29 – Feb 12
Transplant Outdoors April 16 Apr 16 – Apr 30
Direct Sow April 9 Apr 9 – Apr 30
Harvest June 25 Jun 25 – Oct 1

Plant 1" deep · 15" apart · Rows 24" apart

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1"/week · Only during dry spells

📅 Days to Maturity

70–120 days

🧪 Soil pH

Needs 6–7 · Your soil: acceptable

🗺️ USDA Zone

Zone 7b

📆 Growing Season

209 days in Madison County

Growing Tips for Hot Peppers in Madison County

Direct sow Hot Peppers outdoors after April 02 in Madison County when soil has warmed and frost danger has passed.

Common pests for Hot Peppers in this region include tomato hornworm and aphids. Use row covers early in the season and inspect plants weekly.

General growing tips

Start seeds indoors 10-12 weeks before last frost as they germinate slowly. Use heat mats to maintain 80-85F soil temperature for germination. Stress plants slightly by reducing water to increase heat levels.

Companion Planting

Good Companions

Avoid Planting Near

  • Fennel
  • Kohlrabi

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Hot Peppers in Madison County, TN?

Madison County is in Zone 7b with an average last frost of April 2. Plan your Hot Peppers planting based on this frost date — see the calendar above for exact timing.

What planting zone is Madison County, TN?

Madison County, Tennessee is in USDA Hardiness Zone 7b. The average last spring frost is April 2 and first fall frost is October 28.

🌱

Your Madison County Garden Planner — Free

A 24-page printable planner built for Madison County (Zone 7b). 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 Madison 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.