How-To: Native Plants
Celebrate Wildflowers
http://www.fs.fed.us/wildflowers/nativegardening/index.shtml
From the U.S. Forest Service
Select native plants for your garden. These species require little water, protect the soil from erosion, and provide habitat for wildlife.
Native Plant Database
http://www.wildflower.org/plants/
From the Lady Bird Johnson Wildflower Center
This native plant database is an amazing resource about plants throughout the U.S. For any species, learn where it grows, when it’s blooming, color of its flowers, whether it need dry or moist soil, and much more!
Plants Database
http://plants.usda.gov/
Look up most U.S. native flowering plants here. Search by common name or scientific name, see what they look like, and learn if they'll grow in your area.
Why Garden With Native Plants?
http://www.fs.fed.us/wildflowers/nativegardening/index.shtml
Learn how and why. These important plant species provide nectar, pollen, and seeds that serve as food for native butterflies, insects, birds and other animals. Unlike natives, common horticultural plants do not provide energetic rewards for their visitors and often require insect pest control to survive.