Green Circle Growers Blog

USDA Recalculates Plant Hardiness Zones

Green Circle Growers - Thursday, April 26, 2012

Indicative of changing weather and temperature patterns, March set high temperature records across much of the U.S. Chicago, where early spring temperatures rarely climb above 50, saw the mercury rise to 80 degrees F. an unprecedented eight times during March. From America’s eastern plains, across the Midwest and South and into New England, unseasonably warm temperatures caused bulbs to bloom and perennial plants to start growing a full month ahead of schedule. more