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When to Plant Potatoes in Grayson County, VA

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

Grayson County, Virginia is in USDA Zone 6b. The average last spring frost is April 24 and the first fall frost is October 18, giving you a growing season of approximately 177 days.

At an elevation of 651 feet, Grayson County receives approximately 40.1 inches of rainfall annually with predominantly silt loam soil. Summer highs average 88ยฐF, providing good warmth for Potatoes during the growing season.

Grayson County, VA (Zone 6b) Moderate season
177 days
Last Spring Frost April 24
177 growing days
First Fall Frost October 18

Grayson County Soil Profile

Soil Type

Silt Loam

Soil pH

5.5-7.1

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (28 days to spare)
Start indoors: Feb 18 Transplant: Apr 29 🍅 Harvest: Jul 8 – Sep 16
Recommended (50%) ✓ Fits season (23 days to spare)
Start indoors: Feb 27 Transplant: May 8 🍅 Harvest: Jul 17 – Sep 25
Safe Start (90%) ✓ Fits season (14 days to spare)
Start indoors: Mar 18 Transplant: May 27 🍅 Harvest: Aug 5 – Oct 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.

Plant Water Budget

Plant needs
1.0″/week
Rainfall provides
1.0″/week
You supply
0.1″/week
Watering frequency Only during dry spells
Season total 76 gal / 100 sq ft
Potatoes needs ~1,520 GDD — county provides 2,832 GDD Excellent fit

Potatoes Planting Timeline โ€” Grayson County, VA

Potatoes Planting Calendar

Activity When Date Range
Start Indoors February 27 Feb 27 โ€“ Mar 13
Transplant Outdoors May 8 May 8 โ€“ May 22
Direct Sow May 1 May 1 โ€“ May 22
Harvest July 17 Jul 17 โ€“ Sep 25

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

Month-by-Month Timeline

MonthActivities
January โ€”
February Start Indoors
March Start Indoors
April โ€”
May Transplant Outdoors Direct Sow
June โ€”
July Harvest
August Harvest
September Harvest
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 6b

Growing Season

177 days

Growing Tips for Grayson 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

Level Up Your Garden

Frequently Asked Questions

When should I plant Potatoes in Grayson County, VA?

Grayson County is in Zone 6b with an average last frost of April 24. Plan your Potatoes planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Grayson County, VA?

Grayson County, Virginia is in USDA Hardiness Zone 6b. The average last spring frost is April 24 and first fall frost is October 18.

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Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Grayson County gardeners in Zone 6b 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 Grayson County, VA. Local conditions may vary. Last updated: April 2026.