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Sweet Potato

Ipomoea batatas

Vegetables📅 90–120 days to harvest☀️ Full sun (6–8 hours)

Overview

Sweet potatoes are one of the easiest and most productive crops for Florida gardens. Unlike Irish potatoes, which struggle in Florida's heat, sweet potatoes revel in warm temperatures and actually prefer the sandy, well-drained soils that define much of the state. They're grown from "slips" — rooted vine cuttings — rather than seed, and once established, the vigorous vines spread rapidly to form a dense, weed-suppressing ground cover.

Florida's long, warm growing season gives sweet potatoes the 90–120 days of frost-free weather they need to develop large, sweet tubers. The vines are decorative enough to double as ornamental ground cover, and the leaves are edible too — a bonus crop that's popular in African, Asian, and Caribbean cuisines found throughout Florida.

Growing in Florida

Sweet potatoes are perfectly adapted to Florida's conditions. The state's sandy soils produce clean, well-shaped roots, and the long warm season provides the 90–120 frost-free days needed for full development. UF/IFAS has conducted extensive sweet potato variety trials at the Hastings research center. The sweet potato weevil (Cylas formicarius) is the primary pest concern in Florida — it's especially problematic in South Florida where it overwinters successfully. Using certified pest-free slips and prompt harvesting are the best defenses.

Planting Calendar

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Central FL
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South FL
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Growing Guide

🌱Soil Type
Loose, well-drained sandy soil (Florida's native sand is ideal)
⚗️Soil pH
5.8–6.2
☀️Sun Requirement
Full sun (6–8 hours)
💧Water Needs
1 inch per week, reduce watering 3 weeks before harvest
📏Spacing
12–18 inches apart, rows 3–4 feet apart
📅Days to Harvest
90–120
🧪Fertilizer
Low nitrogen — 5-10-10 or similar. Too much nitrogen produces vines but small roots.
🌿Propagation
Slips (rooted vine cuttings) planted in warm soil

Companion Planting

🌱 Bean
Fixes nitrogen in the soil, providing gentle feeding for sweet potatoes
🌱 Corn
Provides vertical structure while sweet potato vines cover the ground
🌱 Marigold
Deters root-knot nematodes that can damage tuber formation
🌱 Dill
Attracts beneficial insects that prey on sweet potato pests

Pests & Diseases

pestSweet Potato Weevil
The most serious pest in Florida. Use certified disease-free slips. Hill soil around stems. Harvest promptly when mature.
pestWireworms
Rotate crops. Avoid planting in recently cleared sod. Soil solarization helps reduce populations.
pestRoot-knot Nematodes
Rotate with non-host crops. Use resistant varieties like Covington. Solarize soil between plantings.
diseaseScurf
Use certified clean slips. Maintain soil pH below 6.5. Scurf is cosmetic but affects marketability.

Florida Varieties

Beauregard
The standard Florida variety. Orange flesh, high yields, good disease resistance. Matures in about 90 days.
Covington
Excellent flavor and nematode resistance. Consistent shape and size. Becoming the new Florida standard.
Murasaki
Japanese purple-skinned, white-fleshed variety. Drier texture, popular in Asian cuisine. Grows well in Florida.
Georgia Jet
Fast-maturing variety (90 days). Good choice for North Florida where growing season is shorter.

Flavor Profile

Texture
Dense, creamy flesh that becomes soft and moist when cooked
Best Eaten
Cooked

Nutrition Highlights

Health note: Orange-fleshed sweet potatoes are one of the richest plant sources of beta-carotene, which the body converts to vitamin A. A single medium sweet potato provides over 400% of the daily recommended vitamin A.

Culinary Uses

Baked whole until caramelized and custardy inside. Roasted in cubes with olive oil and spices. Mashed with butter, brown sugar, and cinnamon for a Southern classic. Fried as chips or fries. Made into pies, casseroles, and soufflés. Sweet potato leaves can be sautéed with garlic — popular in Caribbean and West African cooking traditions common in Florida.

Storage Tips

Cure sweet potatoes before storage: keep at 80–85°F with high humidity for 7–10 days after harvest to heal cuts and convert starches to sugars. After curing, store in a cool (55–60°F), dark, well-ventilated area for up to 6 months. Never refrigerate — cold temperatures damage the flesh and create off-flavors.

💡 Fun Fact

Despite the name, sweet potatoes are not related to potatoes at all. They're in the morning glory family (Convolvulaceae), which is why their flowers look like small morning glories. A single sweet potato plant can produce 5–10 pounds of tubers in Florida's warm conditions.