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Membership in the AHS will connect you to the most accurate gardening information available. Through our acclaimed magazine, The American Gardener, our members enjoy a variety of in-depth articles on plants, design, and garden personalities, written by expert horticulturists, professional growers, and Master Gardeners.
The AHS supported development of the USDA Plant Hardiness Map, and in 1997, we created the AHS Plant Heat Zone Map, a definitive guide to climate-appropriate plantings. Hardiness and heat tolerance codes assigned by AHS experts are at the heart of our nearly 100 separate reference books and publications, including the best-selling AHS A to Z Encyclopedia of Garden Plants (2004).
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