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Allium cepa var. cepa Synonyms: A. cepaCommon Name(s): Onion Family: Liliaceae Growth Habit: Func. Annual/Biennial Invasiveness: Growing Days: 85 to 175 (days) Temperature:
Abs.Max=84° (F) | Opt.Max=75° (F) | Opt.Min=54° (F) | Abs.Min=45° (F) | Precipitation: 14 to 24 (in.) Winter Minimum: 28° (F) Soil pH: 6 to 7 Soil Texture/Type: Sandy, muck, or acid peat soil Soil Drainage: Well Photoperiod Response: Long day, short day and day neutral Light Intensity: Clear Comments: Best in cool temperatures during early growth and fairly high temps during bulbing, harvesting, and curling. Avoid heavy soils that crust. Best on acidic, sandy or muck soil. Diseases: Pythium, Phytothora, Sclerotinia, Cercospora, Rhizoctonia, Rust Uses: Additive - flavoring, Food - vegetable Woodiness: Herbaceous Climate: Temperate, steppe and semi-arid, tropical-rainy, subtropical Geographical Origin: Only cultivated
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