From gardening organizations and purchasing seeds to gardening tips and articles, here are some additional resources to expand your gardening knowledge:

• American Community Gardening Association: An organization of professionals, volunteers and supporters of community greening in urban and rural communities.

• The Backyard Gardener: Gardening information structured to support backyard garden themes. Provides seasonal gardening information and the largest garden store on the Web.

• Better Homes and Gardens: The top landscape and flower gardening Web site, with hundreds of gardening articles, garden tips, flower garden and landscape plans.

• Burpee: Seller of specialty seeds and gardening accessories.

• Fine Gardening Magazine: Ornamental gardening and landscape design magazine filled with practical gardening tips and inspiring stories written by experienced gardeners.

• GardenGuides: Gardening information and resources including articles by top garden writers, seasonal tips, advice and guide sheets on hundreds of plants.

• The Garden Helper: Easy to use gardening tips, advice, articles, and guides show how to grow your favorite flowers and plants in your home garden.

• Gardening.com: Garden supplies, gardening tips, seeds and everything you need to make your garden the best it can be!

• GardenWeb: The largest gardening Web site, with garden forums, articles on gardening, directories of nurseries, gardens and gardening organizations.

• Gardener’s Supply Company: Gardening tools and supplies including seed starting equipment, greenhouses, garden furniture.

• Home and Garden Directory: Huge selection of thousands of products.

• Home & Garden Television: Hardscaping, landscaping, flower and plant videos and more.

• Mailorder Gardening Association: A huge selection of products delivered directly to your door.

• National Gardening Association: Features answers to common questions, regional reports, informative articles, and how-to projects.

• Northern Gardening: A good resource for all gardeners – especially those in a cold climate. Articles and photographs on a variety of gardening subjects.

• Organic Gardening: Online version of print magazine. Forums, archives, and principles of organic gardening.

• Perennial Plant Association: A professional organization dedicated to enhancing opportunities for the success of the professional member providing education for the production, promotion and the use of perennial plants.
  
  
• Seed Savers Exchange: A nonprofit organization that saves and shares the heirloom seeds of our garden heritage, forming a living legacy that can be passed down through generations.

• United States Department of Agriculture: Provides the public with resources related to home gardening, nurseries, horticulture.