Root Vegetable

When to Plant Potatoes in Tennessee

Incredibly satisfying to grow. There's nothing quite like digging up your own potatoes — it's like buried treasure.

The Short Answer

In Tennessee, soil conditions are an important factor for potatoes. Clay soils over limestone in Middle Tennessee. Rich river bottom soils in west. Rocky mountain soils in east. Direct sow 2 weeks before your last frost date.

Tennessee Frost Dates

Your planting dates depend on which part of Tennessee you're in. Here are the frost date ranges by region:

Region Zones Last Frost (Spring) First Frost (Fall)
East Tennessee 6a, 6b, 7a Apr 5 - Apr 25 Oct 10 - Oct 25
Middle Tennessee 6b, 7a Apr 5 - Apr 20 Oct 15 - Nov 1
West Tennessee 7a, 7b Mar 25 - Apr 10 Oct 20 - Nov 5

Potatoes Planting Schedule for Tennessee

East Tennessee (Zones 6a, 6b, 7a)

Average last frost: Apr 5 - Apr 25 · Average first frost: Oct 10 - Oct 25

Direct Sow
2 wks before frost

Middle Tennessee (Zones 6b, 7a)

Average last frost: Apr 5 - Apr 20 · Average first frost: Oct 15 - Nov 1

Direct Sow
2 wks before frost

West Tennessee (Zones 7a, 7b)

Average last frost: Mar 25 - Apr 10 · Average first frost: Oct 20 - Nov 5

Direct Sow
2 wks before frost

Growing Potatoes in Tennessee

Potatoes in Tennessee's Climate

Potatoes are a cool-season crop in warm climates — plant in late winter for late spring harvest before summer heat shuts tuber growth down. Once soil temperatures exceed 85°F consistently, tuber growth stops. Choose heat-tolerant varieties like Red LaSoda. Some southern growers plant a second crop in August for fall harvest.

Soil Considerations for Tennessee

Clay soils over limestone in Middle Tennessee. Rich river bottom soils in west. Rocky mountain soils in east. Loose, well-drained soil is especially important for potatoes since the edible portion grows underground. If your soil is heavy clay, consider raised beds.

Tennessee Climate & Growing Season

Mild four-season climate. Hot, humid summers. Adequate rainfall. Good growing season for wide variety of crops.

Growing season length varies across Tennessee: East Tennessee (6a, 6b, 7a) has a last frost around Apr 5 - Apr 25, while West Tennessee (7a, 7b) sees frost end around Mar 25 - Apr 10. This difference matters for potatoes — adjust your planting dates to match your specific region.

Growing Tips

Plant seed potatoes (not grocery store potatoes) 2-3 weeks before last frost. Hill soil around stems as they grow to increase yield.

Companion Planting

Plant potatoes alongside these companions for better growth:

Beans Corn Cabbage Marigolds

Keep potatoes away from:

Tomatoes Squash Sunflowers

The Bottom Line

Potatoes can be grown successfully across Tennessee, but your exact planting dates depend on which region you're in. East Tennessee gardeners should plan around a Apr 5 - Apr 25 last frost, while those in West Tennessee can typically plant earlier. For exact dates based on your zip code, use our free planting date finder.
Note: All dates are based on NOAA 30-year Climate Normals and represent historical averages, not predictions for any specific year. Always check your local weather forecast before planting frost-sensitive crops. Learn about our data sources.

Last reviewed: March 29, 2026

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