Information on lawn, garden and landscape plant questions is available from ISU Extension and Outreach staff. Call the Hortline with your questions!

HORTLINE: 515-294-3108

Call us from 10am to noon or 1-4:30pm, Monday through Friday.
Don’t have time to call? Send us an email with your questions anytime and we will get back to you. Email:


cindy haynes headshot
Associate Professor
Demonstration Gardens, Herbaceous Ornamentals (Perennials/Annuals), General Horticulture Questions
Jeff iles headshot
Professor and Horticulture Department Chair
Nursery & Garden Center Management, Arboriculture (Tree Care), Landscape Plant Selection
Richard Jauron
Extension Program Specialist II
Hortline, General Horticulture Questions, Plant Identification
laura Jesse headshot
Extension Program Specialist IV, Director of the Plant and Insect Diagnostic Clinic
Insects, Plant Diseases, Weed Identification
donald lewis headshot
Photo of Lina Rodriguez Salamanca
Extension Plant Pathologist and Diagnostician
Plant Diseases