GardenWeb: Ask the Experts Avid gardeners answer users' questions about a variety of common gardening issues. Browse by general topic or use the keyword search.
HGTV: Landscaping Ideas HGTV can provide inspiration and help when planning your yard. Articles and videos address common landscaping mistakes, how to build decks and design patio spaces, as well as indoor and container gardening.
National Gardening Association Beginner gardeners can find a wealth of information here. Standout features include plant care guides, a plant finder database, weed library, and how-to projects and videos, all chock-full of tips to make your garden flourish.
The Garden Helper Don't be misled by the homemade look to this website. This is a huge gardening site with abundant advice for growing flowers, plants, trees, fruits, and vegetables. The site is best used by searching for your specific issue in the search box at the bottom of the homepage. Some features are a gardening calendar and extensive plant and flower guides.
Tree Guide: Arbor Day Foundation Browse alphabetically or search the common or scientific name of a tree for a color photograph, growing information, zones, and other attributes.