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When to Plant Potatoes in Reagan County, TX

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

Reagan County, Texas is in USDA Zone 7b. The average last spring frost is March 30 and the first fall frost is November 9, giving you a growing season of approximately 224 days.

At an elevation of 3,983 feet, Reagan County receives approximately 51.9 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 97ยฐF, so Potatoes may need afternoon shade and extra watering during peak heat. Sandy soil warms quickly in spring โ€” great for early planting โ€” but Potatoes will need more frequent watering and organic matter to retain nutrients. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Potatoes root diseases.

Reagan County, TX (Zone 7b) Long season
224 days
Last Spring Frost March 30
224 growing days
First Fall Frost November 9

Reagan County Soil Profile

Soil Type

Sandy Loam

Soil pH

7.7-8.9

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (74 days to spare)
Start indoors: Jan 27 Transplant: Mar 31 🍅 Harvest: Jun 9 – Aug 18
Recommended (50%) ✓ Fits season (70 days to spare)
Start indoors: Feb 9 Transplant: Apr 13 🍅 Harvest: Jun 22 – Aug 31
Safe Start (90%) ✓ Fits season (72 days to spare)
Start indoors: Feb 25 Transplant: Apr 29 🍅 Harvest: Jul 8 – Sep 16

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.

Plant Water Budget

Plant needs
1.0″/week
Rainfall provides
1.0″/week
You supply
0.0″/week
Watering frequency Only during dry spells
Season total 64 gal / 100 sq ft
Drought risk

Water stress score is 6/10 โ€” consider drought-tolerant varieties and mulching

Potatoes needs ~2,161 GDD — county provides 5,096 GDD Excellent fit

Potatoes Planting Timeline โ€” Reagan County, TX

Potatoes Planting Calendar

Activity When Date Range
Start Indoors February 9 Feb 9 โ€“ Feb 23
Transplant Outdoors April 13 Apr 13 โ€“ Apr 27
Direct Sow April 6 Apr 6 โ€“ Apr 27
Harvest June 22 Jun 22 โ€“ Aug 31

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

Month-by-Month Timeline

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

Growing Conditions

Sun

Full Sun (6-8+ hours)

Water

Moderate โ€” regular watering

Days to Maturity

70โ€“120 days

Soil pH

5 โ€“ 6.5

USDA Zone

Zone 7b

Growing Season

224 days

Growing Tips for Reagan 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

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Frequently Asked Questions

When should I plant Potatoes in Reagan County, TX?

Reagan County is in Zone 7b with an average last frost of March 30. Plan your Potatoes planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Reagan County, TX?

Reagan County, Texas is in USDA Hardiness Zone 7b. The average last spring frost is March 30 and first fall frost is November 9.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Reagan County gardeners in Zone 7b organize planting dates, track what's growing, and never miss a planting window.

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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 Reagan County, TX. Local conditions may vary. Last updated: April 2026.