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Can You Grow Sweet Potato in Arizona?

US · USDA Zone 9a · zones 4b, 5a, 5b, 6a, 6b, 7a, 7b, 8a, 8b, 9a, 9b, 10a

Grows well here

Sweet potatoes grow well here — they love the warm season your zone provides.

Plant zones

5a–11b

Arizona last frost

late January

Arizona first frost

late December

Days to harvest

90–120 days

When to plant Sweet Potatoes in Arizona

Direct sow

Jan 20

Harvest

Apr 20 – May 20

Dates are approximate, based on Arizona's average frost dates. Your exact yard may vary by microclimate.

About Sweet Potato

Sweet potatoes need a long warm season and thrive in heat — they are a subtropical crop at heart.

Plant slips (rooted cuttings) after soil warms to 18°C. They sprawl — give them space or train vertically. Cure harvested tubers at 30°C for a week to develop sweetness and improve storage.

Full sweet potato growing guide →

Gardening in Arizona

Arizona spans dramatic climate zones from cool mountain forests to hot desert. Low-elevation cities like Phoenix grow year-round; high-elevation areas are Zone 5-6.