This map shows the overall suitability of this crop in the state of Illinois.
Overall Suitability Map
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Ricinus communis
Synonyms:

Common Name(s): Castor-bean
Family: Euphorbiaceae
Growth Habit: Annual/Perennial
Invasiveness: Weed
Growing Days: 140 to 210 (days)
Temperature:
Abs.Max=102° (F)    Opt.Max=86° (F)
Opt.Min=68° (F)    Abs.Min=59° (F)
Precipitation: 24 to 39 (in.)
Winter Minimum: 28° (F)
Soil pH: 5 to 6.5
Soil Texture/Type: Well sand/clay loams
Soil Drainage: Well
Photoperiod Response: Long day and day neutral
Light Intensity: Bright
Comments:
Plant in warm (15.6 C) soil. Needs low humidity, salinity, and alkalinity. No frost tolerance. Likes very high temperatures.
Diseases:
Pythium, Phytothora, Anthrachose, Rhizoctonia, Cercospora
Uses:
Host - silkworms, Material - lipids, Environ. - ornamental, Additive - flavoring, Weed - possible seed contam.
Woodiness:
Herbaceous
Climate:
Subtropical-humid, subtropical-dry summer, tropical-wet and dry, steppe and semi-arid
Geographical Origin:
Tropics, Subtropics, Africa
 
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Last Modified: October 17, 2012
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