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

Common Name(s): Pot-marigold
Family: Asteraceae
Growth Habit: Func. Annual/Biennial
Growing Days: 50 to 180 (days)
Abs.Max=86° (F)    Opt.Max=79° (F)
Opt.Min=61° (F)    Abs.Min=46° (F)
Precipitation: 20 to 31 (in.)
Winter Minimum:
Soil pH: 5.5 to 7
Soil Texture/Type: Medium, light
Soil Drainage: Well
Photoperiod Response: Long day
Light Intensity: Very bright
Antibiotic and wound healing.
Pythium, Sclerotinia, Rust, Rhizoctonia, Cercospora, Anthrachose, Powdery Mildew
Additive - coloring, Additive - flavoring, Environ. - ornamental, Medicinal - folklore
Subtropical-dry summe, temperate, steppe and semi-arid
Geographical Origin:
Only cultivated
Metric Units

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Last Modified: October 17, 2012
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