Root Vegetable

When to Plant Sweet Potatoes in Alabama

Not related to regular potatoes at all. Sweet potatoes need heat and a long growing season but reward with incredible harvests.

The Short Answer

In Alabama, soil conditions are an important factor for sweet potatoes. Red clay soils in north, sandy loam in south. Amend with compost for drainage in clay areas.

Alabama Frost Dates

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

Region Zones Last Frost (Spring) First Frost (Fall)
Northern Alabama 7a, 7b Mar 25 - Apr 10 Oct 20 - Nov 5
Central Alabama 7b, 8a Mar 15 - Apr 1 Nov 1 - Nov 15
Southern Alabama 8a, 8b Feb 28 - Mar 15 Nov 10 - Nov 25

Sweet Potatoes Planting Schedule for Alabama

Northern Alabama (Zones 7a, 7b)

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

Start Seeds Indoors
8 wks before frost
Transplant Outside
3 wks after frost

Central Alabama (Zones 7b, 8a)

Average last frost: Mar 15 - Apr 1 · Average first frost: Nov 1 - Nov 15

Start Seeds Indoors
8 wks before frost
Transplant Outside
3 wks after frost

Southern Alabama (Zones 8a, 8b)

Average last frost: Feb 28 - Mar 15 · Average first frost: Nov 10 - Nov 25

Start Seeds Indoors
8 wks before frost
Transplant Outside
3 wks after frost

Growing Sweet Potatoes in Alabama

Sweet Potatoes in Alabama's Climate

Sweet potatoes thrive in your climate. The long, warm growing season gives them all the time and heat they need. Plant slips from April and enjoy one of the easiest, most productive crops available in warm zones. Sweet potatoes are remarkably drought-tolerant once established — they handle dry spells better than most vegetables.

Soil Considerations for Alabama

Red clay soils in north, sandy loam in south. Amend with compost for drainage in clay areas. Loose, well-drained soil is especially important for sweet potatoes since the edible portion grows underground. If your soil is heavy clay, consider raised beds.

Alabama Climate & Growing Season

Long growing season. Hot, humid summers. Mild winters allow for fall and winter gardening in southern regions. Sweet Potatoes cannot tolerate any frost, so wait until all frost danger has passed before transplanting outside. Watch local forecasts carefully in spring.

Growing season length varies across Alabama: Northern Alabama (7a, 7b) has a last frost around Mar 25 - Apr 10, while Southern Alabama (8a, 8b) sees frost end around Feb 28 - Mar 15. This difference matters for sweet potatoes — transplant timing shifts by several weeks across the state.

Growing Tips

Grow from slips, not seeds. Start slips from a sweet potato in water 8 weeks before transplanting. Cure harvested tubers in warmth for 10 days.

Companion Planting

Plant sweet potatoes alongside these companions for better growth:

Beans Corn

Keep sweet potatoes away from:

Squash

The Bottom Line

Sweet Potatoes can be grown successfully across Alabama, but your exact planting dates depend on which region you're in. Northern Alabama gardeners should plan around a Mar 25 - Apr 10 last frost, while those in Southern Alabama can typically plant earlier. For exact dates based on your zip code, use our free planting date finder.

Related Guides

Sweet Potatoes Growing Guide National planting guide with all states Alabama Planting Calendar All plants for Alabama Sweet Potatoes in Alaska Alaska planting dates Sweet Potatoes in Arizona Arizona planting dates Sweet Potatoes in Arkansas Arkansas planting dates
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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