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When to Plant Potatoes in Cheatham County, TN

Cheatham County, Tennessee Zone 7b May

May in the garden — Cheatham County, Tennessee

Your Cheatham County, Tennessee garden is entering a new phase. Here's what's on the schedule for May and why each task matters now.

Avg. last frost April 5
Avg. first frost October 29
Soil temp (4") 64°F
Watering Moderate
Pest pressure Moderate
Daylight 13.9 hrs
  1. Start potatoes indoors

    Starting these indoors now means sturdy transplants ready the moment your soil warms up.

Before June arrives, get these ready
  • First harvests: potatoes

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Potatoes are a versatile staple crop that produces tubers underground. They come in hundreds of varieties with varying colors, textures, and maturity dates.

Cheatham County, Tennessee is in USDA Zone 7b. The average last spring frost is April 5 and the first fall frost is October 29, giving you a growing season of approximately 207 days.

At an elevation of 2,381 feet, Cheatham County receives approximately 41.2 inches of rainfall annually with predominantly silt loam soil. Summer highs average 94°F, providing good warmth for Potatoes during the growing season.

Cheatham County, TN (Zone 7b) Long season
207 days
Last Spring Frost April 5
207 growing days
First Fall Frost October 29

Cheatham County Soil Profile

Soil Type

Silt Loam

Soil pH

5.4-6.5

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (54 days to spare)
Start indoors: Feb 8 Transplant: Apr 12 🍅 Harvest: Jun 21 – Aug 30
Recommended (50%) ✓ Fits season (53 days to spare)
Start indoors: Feb 15 Transplant: Apr 19 🍅 Harvest: Jun 28 – Sep 6
Safe Start (90%) ✓ Fits season (53 days to spare)
Start indoors: Mar 1 Transplant: May 3 🍅 Harvest: Jul 12 – Sep 20

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 Cheatham County

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

Soil pH

Your soil pH (5.4–6.5) is within Potatoes's preferred range (5.0–6.5).

Soil Texture

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

Organic Matter

Organic matter is moderate (2.7%). Annual compost additions will help Potatoes.

How to Plant Potatoes

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

Succession Planting Potatoes

3
successive plantings in your 207-day season

Sow every 8 weeks. Last sowing by Jul 01 to harvest before frost.

Plant Water Budget

Plant needs
1.0″/week
Rainfall provides
0.8″/week
You supply
0.2″/week
Watering frequency Only during dry spells
Season total 363 gal / 100 sq ft
Drought risk

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

Monthly Watering Guide for Potatoes

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

Month Potatoes Needs Rainfall You Supplement Action
Jan 3.3" 0" ❄️ Dormant
Feb 2.9" 0" ❄️ Dormant
Mar 4.2" 0" ❄️ Dormant
Apr 4.3" 2.7" 1.6" 💧 Light watering
May 4.3" 3.5" 0.8" 💧 Light watering
Jun 4.3" 3.8" 0.5" 💧 Light watering
Jul 4.3" 3.9" 0.4" 💧 Light watering
Aug 4.3" 4.3" 0" ✅ Rainfall sufficient
Sep 4.3" 3.2" 1.1" 💧 Light watering
Oct 4.3" 2.4" 1.9" 💧 Light watering
Nov 3.2" 0" ❄️ Dormant
Dec 3.8" 0" ❄️ Dormant

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

Potatoes 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.

Potatoes needs ~1,948 GDD — county provides 4,243 GDD Excellent fit

Potatoes Planting Timeline — Cheatham County, TN

Potatoes Planting Calendar

Activity When Date Range
Start Indoors February 15 Feb 15 – Mar 1
Transplant Outdoors April 19 Apr 19 – May 3
Direct Sow April 12 Apr 12 – May 3
Harvest June 28 Jun 28 – Sep 6

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

Month-by-Month Timeline

MonthActivities
January
February Start Indoors
March Start Indoors
April Transplant Outdoors Direct Sow
May Transplant Outdoors Direct Sow
June Harvest
July Harvest
August Harvest
September Harvest
October
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 5–6.5 · Your soil: ideal

🗺️ USDA Zone

Zone 7b

📆 Growing Season

207 days in Cheatham County

Growing Tips for Potatoes in Cheatham County

Direct sow Potatoes outdoors after April 05 in Cheatham County when soil has warmed and frost danger has passed.

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

General growing tips

Plant seed potatoes (not grocery store potatoes) 4 inches deep in spring. Hill soil around stems as plants grow to prevent greening. Stop watering when plants die back.

Companion Planting

Good Companions

Avoid Planting Near

  • Tomatoes
  • Cucumber
  • Squash Summer

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Potatoes in Cheatham County, TN?

Cheatham County is in Zone 7b with an average last frost of April 5. Plan your Potatoes planting based on this frost date — see the calendar above for exact timing.

What planting zone is Cheatham County, TN?

Cheatham County, Tennessee is in USDA Hardiness Zone 7b. The average last spring frost is April 5 and first fall frost is October 29.

🌱

Your Cheatham County Garden Planner — Free

A 24-page printable planner built for Cheatham 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 Cheatham 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.