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When to Plant Potatoes in McCracken County, KY

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

McCracken County, Kentucky is in USDA Zone 6b. The average last spring frost is March 30 and the first fall frost is October 30, giving you a growing season of approximately 214 days.

At an elevation of 1,445 feet, McCracken County receives approximately 48 inches of rainfall annually with predominantly silt loam soil. Summer highs average 86Β°F, providing good warmth for Potatoes during the growing season.

McCracken County, KY (Zone 6b) Long season
214 days
Last Spring Frost March 30
214 growing days
First Fall Frost October 30

McCracken County Soil Profile

Soil Type

Silt Loam

Soil pH

5.3-6.6

Drainage

Well Drained

How Much Potatoes to Grow

3-5 lbs
Average yield per plant
5
Plants per person
10 sq ft
Space per person

For a family of 4, plant approximately 20 potatoes plants in about 40 sq ft. In McCracken County's 214-day season, you'll have plenty of time for a full harvest. Plan your garden layout →

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 β€” 3.8" 0" ❄️ Dormant
Feb β€” 3.9" 0" ❄️ Dormant
Mar 4.3" 4.3" 0" βœ… Rainfall sufficient
Apr 4.3" 3.9" 0.4" πŸ’§ Light watering
May 4.3" 3.8" 0.5" πŸ’§ Light watering
Jun 4.3" 4.1" 0.2" πŸ’§ Light watering
Jul 4.3" 4.5" 0" βœ… Rainfall sufficient
Aug 4.3" 4.7" 0" βœ… Rainfall sufficient
Sep 4.3" 4.2" 0.1" πŸ’§ Light watering
Oct 4.3" 3.7" 0.6" πŸ’§ Light watering
Nov β€” 3.6" 0" ❄️ Dormant
Dec β€” 3.4" 0" ❄️ Dormant

Water needs are for active growing months only (Mar–Oct in McCracken County). Supplement amounts are based on average rainfall β€” actual needs vary with temperature, soil, and mulching.

Potatoes Planting Timeline β€” McCracken County, KY

Potatoes Planting Calendar

Activity When Date Range
Start Indoors February 2 Feb 2 – Feb 16
Transplant Outdoors April 13 Apr 13 – Apr 27
Direct Sow April 6 Apr 6 – Apr 27
Harvest June 22 Jun 22 – Aug 31

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

Month-by-Month Timeline

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

Growing Conditions

β˜€οΈ Sun

Full Sun (6-8+ hours)

πŸ’§ Water

Moderate β€” regular watering

πŸ“… Days to Maturity

70–120 days

πŸ§ͺ Soil pH

Needs 5–6.5 Β· Your soil: N/A

πŸ—ΊοΈ USDA Zone

Zone 6b

πŸ“† Growing Season

214 days in McCracken County

Growing Tips for McCracken County

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 McCracken County, KY?

McCracken County is in Zone 6b with an average last frost of March 30. Plan your Potatoes planting based on this frost date β€” see the calendar above for exact timing.

What planting zone is McCracken County, KY?

McCracken County, Kentucky is in USDA Hardiness Zone 6b. The average last spring frost is March 30 and first fall frost is October 30.

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Plan Your Garden with Confidence

Get our free Garden Planner β€” designed to help McCracken County gardeners in Zone 6b organize planting dates, track what's growing, and never miss a planting window.

Get Your Free Garden Planner →

Free download. Plan your entire garden season in minutes.

Data sources: USDA Plant Hardiness Zone Map (2023), NOAA 30-Year Climate Normals. Frost dates are based on 50% probability averages for McCracken County, KY. Local conditions may vary. Last updated: April 2026.