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Lactuca sativa var. crispa Synonyms: Common Name(s): Leaf lettuce Family: Asteraceae Growth Habit: Func. Annual/Biennial Invasiveness: Growing Days: 35 to 80 (days) Temperature:
Abs.Max=30° (C) | Opt.Max=18° (C) | Opt.Min=8° (C) | Abs.Min=6° (C) | Precipitation: 30 Winter Minimum: Soil pH: 6 to 7 Soil Texture/Type: Light sandy loam; silt loam Soil Drainage: Well Photoperiod Response: Light Intensity: Comments: Not frost tender. Has to have moist conditions. Easily attacked by aphids and slugs. Diseases: Pythium, Sclerotinia, Rust, Cercospora, Powdery Mildew Uses: Food - vegetable, Animal Food - fodder Woodiness: Climate: Geographical Origin: Only cultivated
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