Plant Hardiness Zones

Plant Hardiness Zones are geographic areas defined by the average annual extreme minimum temperature. The zones help gardeners and horticulturists to determine which plants are most likely to thrive in their particular region.

Idaho Interactive USDA Plant Hardiness Zone Map

Idaho Plant Hardiness Zone

by Chris Niemann

The USDA (United States Department of Agriculture) has divided the United States into 13 different plant hardiness zones based on the average annual minimum winter… Read More »Idaho Plant Hardiness Zone

Wisconsin Plant Hardiness Zone

by Chris Niemann

Wisconsin has a range of plant hardiness zones from 3a to 7b. The northern part of Wisconsin, including cities like Ashland, Hayward, and Rhinelander, are… Read More »Wisconsin Plant Hardiness Zone

Michigan Plant Hardiness Zone

by Chris Niemann

Michigan is located in the central to northern part of the United States, and as such, it has a wide range of Plant Hardiness Zones.… Read More »Michigan Plant Hardiness Zone