General Gardening

• University of Wisconsin-Extension InfoSource Garden & Landscape
• University of Wisconsin Urban Horticulture
• University of Wisconsin-Extension Publications
• University of Wisconsin Garden Fact Sheets
  
• University of Illinois Extension Hort Corner
• University of Minnesota Extension Horticulture
• University of Ohio Extension Horticulture Yard and Garden Line

Trees

• Arboriculture On-line Certified Arborist List
• Landscape Plants of the Upper Midwest
• Forestry Fact Series (for information on forestry and woodland management from the University of Wisconsin)

Lawns

• University of Wisconsin Turf Lab
• University of Illinois Extension Lawn Talk

Fruits and Vegetables

• UW Fresh Market Vegetables
• Wisconsin Fresh Fruit and Vegetable Newsletter

Insects

• University of Wisconsin Insect Diagnostic Lab
• University of Wisconsin Department of Entomology
• University of Wisconsin Integrated Pest & Crop Management

Diseases

• University of Wisconsin Plant Diseases Diagnostic Clinic
• University of Wisconsin Fruit Pathology

Soils

• University of Wisconsin Soil & Plant Analysis Laboratory

Other Agencies

• Wisconsin Department of Agriculture, Trade and Consumer Protection
• Wisconsin Department of Natural Resources
• USDA Plants Database

Botanic Gardens

• Boerner Botanic Garden
• Chicago Botanic Garden

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Other Links

• Wisconsin Green Industry Federation

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