This map shows the overall suitability of this crop in the state of Illinois.
Overall Suitability Map
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Dioscorea bulbifera

Common Name(s): Air-potato
Family: Dioscoreaceae
Growth Habit: Annual/Perennial
Invasiveness: Noxious weed:FL
Growing Days: 90 to 300 (days)
Abs.Max=100° (F)    Opt.Max=86° (F)
Opt.Min=77° (F)    Abs.Min=54° (F)
Precipitation: 47 to 102 (in.)
Winter Minimum: 48° (F)
Soil pH: 6 to 6.7
Soil Texture/Type: Rich, loamy soils
Soil Drainage: Well
Photoperiod Response: Short day
Light Intensity: Bright to clear
Tropical plant tolerating no frost. Needs warm temps and 2-5 month dry season.
Anthrachose, Cercospora
Food - vegetable, Environ. - ornamental, Weed - possible seed contam., Poison - mammals
Tropical-wet and dry
Geographical Origin:
Africa, Australia, China, Malesia, Indian Subcontinent

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Last Modified: October 17, 2012
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