This map shows the overall suitability of this crop in the state of Illinois.
Overall Suitability Map
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Papaver somniferum subsp. somniferum

Common Name(s): Opium poppy
Family: Papaveraceae
Growth Habit: Annual
Invasiveness: Noxious weed:WV
Growing Days: 135 to 210 (days)
Abs.Max=82° (F)    Opt.Max=75° (F)
Opt.Min=59° (F)    Abs.Min=37° (F)
Precipitation: 31 to 47 (in.)
Winter Minimum: 23° (F)
Soil pH: 6.5 to 7.5
Soil Texture/Type: Medium heavy, moist, and manured
Soil Drainage: Well
Photoperiod Response: Long day
Light Intensity: Bright to clear
Illegal to grow in US. Does poorly in humid tropics. Soils neutral or slightly alkaline.
Sclerotinia, Rhizoctonia, Powdery Mildew
Environ. - ornamental, Material - lipids, Food - seeds, Additive - flavoring, Food - oil/fat, Animal Food - fodder
Steppe and semi-arid, temperate, subtropical-dry summer
Geographical Origin:
Widely cultivated
Metric Units

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Last Modified: October 17, 2012
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