Maine forestry officials are planning a wide expansion of quarantine zones to try to prevent the spread of three invasive forest pests that pose threats to the state’s timber industry.

The USDA 2012 Plant Hardiness Zone Map. USDA The USDA Plant Hardiness Zone Map divides the United States and Canada into 13 zones, based on the average annual minimum winter temperature.

PORTLAND, Maine (AP) — Maine forestry officials are planning a wide expansion of quarantine zones to try to prevent the spread of three invasive forest pests that pose threats to the state’s timber ...

Your home doesn’t have to look farm-like either, thanks to crops we call edimentals. The East Coast has a cornucopia of edible crops that also look right at home tucked in with your ornamental ...

Hardiness Zones 101. The USDA Plant Hardiness Zone Map consists of 13 individual zones that take in all of the contiguous United States, plus Alaska, Hawaii, and Puerto Rico.

From the coast to mountains and from mild climates to nearly arctic conditions, Maine encompasses more than a hundred types ...

A stock photo shows a woman gardening. Certain plants are losing hardiness due to climate change. Dejan_Dundjerski/Getty "Most of the hardiness zones across the U.S. experienced a half-zone shift ...