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

Common Name(s): Black walnut
Family: Juglandaceae
Growth Habit: Perennial
Growing Days: 150 to 180 (days)
Abs.Max=97° (F)    Opt.Max=82° (F)
Opt.Min=55° (F)    Abs.Min=36° (F)
Precipitation: 30 to 60 (in.)
Winter Minimum: -27° (F)
Soil pH: 6.5 to 7.5
Soil Texture/Type: Medium; deep loams and alluvial deposits
Soil Drainage: Well
Photoperiod Response: Long day
Light Intensity: Bright
Illinois timber crop. Grown in the Midwest and eastern US. Requires 1900 GDD (50 F). Prefers deep soils of high fertility. No salt tolerance. Good drought resistance.
Phytothora, Anthrachose, Rhizoctonia, Cercospora, Powdery Mildew
Material - wood, Environ. - ornamental, Food - nut, Environ. - graftstock, Environ. - shelter
Subtropical, steppe and semi-arid, temperate
Geographical Origin:
North America

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Last Modified: October 17, 2012
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