Editor's Picks
Everyone who knew Lloyd will be as shocked and saddened as...
Shaun Haddock
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Aug 24, 2019
This report highlights two sites near the limits of the...
Dirk Giseburt
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Aug 08, 2019
Marcie Mayer’s new book, Eating Acorns, has soft “wipeable”...
Roderick Cameron
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Aug 07, 2019
Plant Focus
Dwarf cultivars can be ideal for a small garden. Here are three "mini oaks".
USDA Plant Hardiness Zone Map
In January 2012, the USDA Agricultural Research Service released a new edition of the American Plant Hardiness Map. The previous edition was released in 1990. Two new zones 12 and 13 have been added to this 2012 edition. The zones are based on 1976-2055 weather data, that is 30 years of data. The 1990 edition was based on 13 years of data. See the What's new section of the USDA ARS Web site for details here.
For the first time, the map is available as an interactive GIS-based map.
