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Look alive zone 5

Talk of Iowa, hosted by Charity Nebbe

According to the USDA Plant Hardiness Zone maps Iowa is in Zone 5. When you’re buying plants that’s important information to have, but what exactly does it mean?

Mark Widrlechner is an affiliate associate professor of horticulture at Iowa State University, and he used to work on those maps for the USDA. He speaks with host Charity Nebbe to help us understand how the zone we're in affects our gardens. Then horticulture expert Aaron Steil joins the episode to answer your questions.


  • Mark Widrlechner, affiliate associate professor of horticulture at Iowa State University
  • Aaron Steil, Iowa State University Extension horticulture specialist
Charity Nebbe is the host of IPR's Talk of Iowa
Aaron Steil is a Consumer Horticulture Specialist with ISU Extension and Outreach. Aaron contributes his expertise to the Garden Variety podcast and newsletter and to Talk of Iowa's Horticulture Day program.