This map shows the overall suitability of this crop in the state of Illinois.
Overall Suitability Map
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Ipomoea batatas var. batatas

Common Name(s): Sweet potato
Family: Convolvulaceae
Growth Habit: Annual/Perennial
Growing Days: 80 to 170 (days)
Abs.Max=100° (F)    Opt.Max=82° (F)
Opt.Min=64° (F)    Abs.Min=50° (F)
Precipitation: 30 to 51 (in.)
Winter Minimum: 34° (F)
Soil pH: 5.5 to 6.2
Soil Texture/Type: Deep, intermediate texture
Soil Drainage: Well
Photoperiod Response: Short day and day neutral
Light Intensity: Bright
Soil must not be too deep (15-30 cm). Grown in southwest Illinois. Grown as annual in North. Warm nights required.
Pythium, Phytothora, Anthrachose, Rust, Rhizoctonia, Cercospora, Powdery Mildew
Material - alcohol, Poison - mammals, Food - vegetable, Food - starch
Subtropical, tropical-rainy
Geographical Origin:
Only cultivated
Metric Units

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Last Modified: October 17, 2012
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