For information specific to your state's climate and wildlife, visit the following links. Although I have provided links to many state extension system offices, keep in mind that not all extension offices are geared towards presenting the most environmentally friendly options. If you find that your state does not provide environmentally friendly information, it might be time to ask them why.

Alabama	Outdoor Alabama- Watchable Wildlife Alabama Conservation Education Alabama Cooperative Extension System Alabama Wildlife Center
Alaska	Landscaping for Wildlife in Alaska All About Wildlife in Alaska
Arizona	The Wildlife Friendly Garden Phoenix - Are Your Environmentally Correct?
Arkansas	Arkansas Backyard Habitat Keep Arkansas Beautiful
California	Link to California Resources
Colorado	Creating a Backyard Wildlife Habitat
Connecticut	Environmental Protection Begins With You Enhancing Your Backyard For Wildlife Connecticut Audubon Society Landowner Incentive Program Endangered Species Invasive Plants Integrated Pest Management Plant Database
Delaware	Livable Neighborhoods Delaware Nature Society Pollution Prevention Recycling Landowner Incentive Program
Florida	Link to Florida Resources
Georgia	Wildlife in Your Backyard Georgia Native Plant Society
Hawaii	Invasive Species Program Native Species Conservation Landowner Assistance Programs
Idaho	Wildlife in the Garden University of Idaho Extension Department of Environmental Quality
Illinois	Illinois Audubon Backyard Nature Chicago Wilderness Living With Wildlife
Indiana	Purdue University Everything Wildlife Indiana Living Green
Iowa	ISU Extension Wildlife Iowa State University Extension
Kansas	Kansas Backyard Habitat Improvement Program
Kentucky	Backyard Wildlife Habitat Program
Louisiana	Building Backyard Habitats Reduce, Reuse, Recycle Energy Efficiency Resource Gateway DEQ - Care Maintenance Landscaping for Wildlife
Maine	Maine Wildlife and Plant Life
Maryland	Citizen Participation Wild Acres
Massachusetts	Wildlife Program Greenhouse Gases and Climate Change Reduce, Reuse, Recycle
Michigan	In Your Backyard Recycling
Minnesota	Stewardship in Your Backyard Native Plant Communities Endangered Species Invasive Species
Mississippi
Missouri	Private Land
Montana	Welcoming Wildlife to Your Backyard
Nebraska	Wildlife Habitat
Nevada
New Hampshire	Your Backyard
New Jersey	Rutgers Cooperative Extension Endangered and Threatened Wildlife Landowner Incentive Program
New Mexico
New York	Cornell University Home Gardening Cornell University Gardening Resources
North Carolina	Environmental Information Sustainable Environment for Quality of Life
North Dakota	Attracting Wildlife to Your Backyard
Ohio	Ohio Invasive Plants Council Native Plants of Ohio Division of Recycling and Litter Prevention Urban Forestry
Oklahoma	Backyard Conservation Native Plant Society
Oregon	Naturescaping Oregon State University Extension Threatened and Endangered Species Department of Environmental Quality
Pennsylvania	Audubon Guide to Gardening for Life in Southeastern Pennsylvania
Rhode Island
South Carolina	Wildlife Federation
South Dakota
Tennessee	University of Tennessee Extension
Texas	Texas Wildscapes Gardening in the Texas Hill Country Grow Green - Austin Endangered and Threatened Species
Utah	Choose Clean Air Green Choices
Vermont	Wildlife Habitat Incentive Program
Virginia	Habitat at Home
Washington	Link to Washington Resources
West Virginia	Wildlife Diversity Program
Wisconsin	Wildlife and Your Land Department of Natural Resources Landowner Incentive Programs
Wyoming	Planting for Backyard Wildlife