American Horticultural Society (AHS)

Definition of American Horticultural Society (AHS)
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In the late 1990s, The American Horticultural Society (AHS) developed the Heat Zone Map, which parallels the USDA Hardiness Zone Map. This map is based on the number of "heat days" experienced in a given area.

He also has been the director of the National Arboretum in Washington, DC, for 10 years; president of the American Horticultural Society (AHS) from 1993 to 1997; and president emeritus of AHS since 1997.

authors of The Nonstop Garden, call these late-season flowers 'among the kings of the autumn bloomers,' and specify that they perform well in temperatures fluctuating between -40 and 30 degrees Fahrenheit. The American Horticultural Society (AHS) ...

See also: Horticultural society, Horticultural, Plant