3) shows that variability is greatest [>5 C (9 F)] in the intermountain region of the western United States and also in the southeast midwestern United States (Ohio River Valley). 5C), that was absent from the old map (Fig. background: #215a64; The PHZM is accessible via an interactive website, which facilitates a wide range of horticultural applications. Although these zones are too risky for the long-term survival of European wine grapes, vineyard development has recently been increasing near Chelan (Washington Wine Commission, 2010). & Raulston, J.C. 1989 Plant high night temperature tolerance zones describing and predicting summer night temperature patterns and the southern limits of plant adaptation Agr. Buyukkokten, O., Cho, J., Garcia-Molina, H., Gravano, L. & Shivakumar, N. 1999 Exploiting geographical location information of web pages, p. 9196. Hayashi, Y. Augustana College, Sioux Falls, SD. Burt, C.C. USDA Zones 5b through 6b are represented in Indiana. 7 May 2010. Nature and cause of seed sterility New Phytol. all! Plant Sci. 2012 Development of a new USDA plant hardiness zone map for the United States J. Appl. The updated PHZM enables users to search for hardiness zones of specific sites by five-digit zip code. The PLANTS Database provides standardized information about the vascular plants, mosses, liverworts, hornworts, and lichens of the U.S. and its territories. The data were carefully quality-controlled for outliers and other inconsistent values (methods are detailed in Daly et al., 2008). usda plant hardiness zones are used to identify the adaptation areas The 19762005 PHZM was produced with the most recent version of parameter-elevation regressions on independent slopes model (PRISM), a well-known climate mapping technology that has generated official USDA 196190 digital climate grids and 19712000 updates (Daly, 2006; Daly et al., 1994, 2002, 2008). The USDA Cold Hardiness Zone map is based on the average annual extreme minimum temperature during a 30 year period in the past, not the lowest temperature that has ever occurred or might occur in the future. According to the new PHZM, low winter temperatures here would be expected to be less limiting than in many of Washington's established wine-grape-growing regions. For example, a national termite-control firm has requested a way to integrate zip codes and plant hardiness zones to predict when termites and other insect pests may become active. Hort. USDA Zones 3b through 5b are represented in South Dakota. Relationship of rest to dehardening in red-osier dogwood, The role of climate in the distribution of vegetation, Canada's plant hardiness zones revisited using modern climate interpolation techniques, Flower bud hardiness of forsythia cultivars, Comparison of the cold hardiness of landscape tree and shrub cultivars growing at two disparate geographic locations, Cold hardiness evaluation of grapevine buds and cane tissues, National Oceanic and Atmospheric Administration. Requests from nurseries and other firms that widely distribute plants. Figure 1 shows the most current USDA Hardiness Zones for South Carolina. In addition, the new map includes a zip code finder, and we describe how it may be used by governmental agencies for risk management and development of recommended plant lists, by horticultural firms to schedule plant shipments, and by other commercial interests that market products seasonally.
usda plant hardiness zones are used to identify the adaptation