Let's Talk Plants
Iowa State University
- HortLine
- Horticulture and Home Pest News
- Plant & Insect Diagnostic Clinic
- Department of Horticulture
- ISU Extension Answer Line
- ISU Extension Store
- Entomology at Iowa State
- ISU Extension Wildlife
- Forestry Extension
- Reiman Gardens
Other Universities
- Factsheet Database at Ohio State University
- Horticulture Extension at the University of Minnesota
- Plant Pathology Extension at Kansas State University
Other Master Gardener Sites
- Indiana
- Illinois
- Kansas
- Minnesota
- Missouri
- Nebraska
- Ohio
- Wisconsin
- State and Provincial Master Gardener Programs
Other Sites
- Botanical Gardens Across the United States
- The Brenton Arboretum
- Cedar Valley Arboretum & Botanical Gardens
- Chicago Botanic Gardens
- Des Moines Botanical Center
- Dubuque Arboretum and Botanical Garden
- Guide to Plant Societies and Associations
- Iowa Arboretum
- Minnesota Landscape Arboretum
- Missouri Botanical Gardens
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