Usda Hardiness Zones Michigan

Usda plant hardiness zone map the 2012 usda plant hardiness zone map is the standard by which gardeners and growers can determine which plants are most likely to thrive at a location. The usda plant hardiness zones are related to the average lowest minimum temperature at a location. The original and most widely used system, developed by the united states department of agriculture as a rough guide for landscaping and gardening, defines 13.

The cooler hardiness zones of 4a through 5a can also be found in the northern lower peninsula. Each growing zone is 10°f warmer (or colder) in an average winter than the adjacent zone. In michigan, our hardiness zones range from 4a in the western upper peninsula and northern lower peninsula, to 6b in the southeast and along the lake michigan lakeshore.

To locate your planting zone on the map, you can click to enlarge the map and find your general area.

Central and southern areas of the lower peninsula trend a bit warmer with zones 5b through 6b. Michigan’s upper peninsula tends to have cooler minimum temperatures, and therefore some colder hardiness zones. State, is known for its relatively harsh winters. Rely on state maps for the usda hardiness zones for planting to select plants suited to your location and climate.