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When to Plant Potatoes in Beaufort County, SC

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

Beaufort County, South Carolina is in USDA Zone 8b. The average last spring frost is March 13 and the first fall frost is November 15, giving you a growing season of approximately 247 days.

At an elevation of 288 feet, Beaufort County receives approximately 56.5 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 95ยฐF, 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.

Beaufort County, SC (Zone 8b) Long season
247 days
Last Spring Frost March 13
247 growing days
First Fall Frost November 15

Beaufort County Soil Profile

Soil Type

Sandy Loam

Soil pH

4.9-6.1

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (93 days to spare)
Start indoors: Jan 14 Transplant: Mar 18 🍅 Harvest: May 27 – Aug 5
Recommended (50%) ✓ Fits season (93 days to spare)
Start indoors: Jan 23 Transplant: Mar 27 🍅 Harvest: Jun 5 – Aug 14
Safe Start (90%) ✓ Fits season (86 days to spare)
Start indoors: Feb 19 Transplant: Apr 23 🍅 Harvest: Jul 2 – Sep 10

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
Watering frequency Natural rainfall sufficient
Season total 0 gal / 100 sq ft
Drought risk

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

Potatoes needs ~2,019 GDD — county provides 5,248 GDD Excellent fit

Potatoes Planting Timeline โ€” Beaufort County, SC

Potatoes Planting Calendar

Activity When Date Range
Start Indoors January 23 Jan 23 โ€“ Feb 6
Transplant Outdoors March 27 Mar 27 โ€“ Apr 10
Direct Sow March 20 Mar 20 โ€“ Apr 10
Harvest June 5 Jun 5 โ€“ Aug 14

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

Month-by-Month Timeline

MonthActivities
January Start Indoors
February Start Indoors
March Transplant Outdoors Direct Sow
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 8b

Growing Season

247 days

Growing Tips for Beaufort 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 Beaufort County, SC?

Beaufort County is in Zone 8b with an average last frost of March 13. Plan your Potatoes planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Beaufort County, SC?

Beaufort County, South Carolina is in USDA Hardiness Zone 8b. The average last spring frost is March 13 and first fall frost is November 15.

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Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Beaufort County gardeners in Zone 8b 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 Beaufort County, SC. Local conditions may vary. Last updated: April 2026.