Plants don’t usually react to a day or two of heat the way they might respond to a frost. The entire region is the same, Chino Valley, Prescott Valley and Prescott are all the same zone. To learn your zone, locate the area you live in on the Delaware zone map for hardiness. The minimum winter temperatures to expect in zone 7 are in the zero to 10 degree F range. Zone 7 offers a long growing season that gives plenty of opportunity to enjoy a wide variety of flowers, trees, shrubs and vegetables. Zone 7 is the only continuous zone of these four, spanning the country. When cities and towns were moved from one zone to another, gardeners were left to wonder what would happen to their existing garden plants. Biggest Variables occur with your direction. That means for zone 7: Of course, the temperatures don't always stay within this range. However, plants subjected to a two week heat wave could well succumb. Given the variability of climate, it’s a hit and miss situation. Features of the Region Photo courtesy of Birmingham Home and Garden. The hardiness zones pivot around these minimum average degrees. The temperatures for each zone are separated by a difference of 10° Fahrenheit. Heat related problems are much harder to quantify. From fall into winter, crabapples put on a terrific display of colorful fruit in a wide array of color, including pale lime, chartreuse with yellow highlights, various shades of gold often rouged with pink, orange or bright red cheeks, bright orange, crimson, carmine, burgundy or even bishop's purple. Unfortunately, plant breeders have yet to start using these distinctions, so they are mostly useful if a gardener want’s to push the envelope a bit. Custom programming and server maintenance by Reinvented Inc.. Connect With Us A north facing garden will be far colder than an east or south facing garden that see the sun more during winter. Bottomline we are a Zone 7-8 – Central Yavapai County is a zone 7 to 8, with the ridgeline dipping to a zone 6. No state has just one zone. You can grow many fruit trees, such as apple, peach, pear, and apricot. Until next issue, I’ll see you at Watters Garden Center. Appearance and Data – The resolution is noticeably better in the most recent map. All Rights Reserved. The USDA released updated Plant Hardiness Zone Maps for the United States in 2012. Harvest: Any remaining carrots, kale, cabbage, and Brussels sprouts.. The South West map is shown here. Plant zones are based on the average annual minimum temperature over a 30-year period, not the lowest temperature the thermometer has ever hit, but rather the average. Therefore, to ensure your new acquisition will survive and grow year after year, you will need to compare the hardiness zone of your area with the hardiness zone of your … In 1990, the zones were further divided, with each numbered zone being broken down into an ‘a’, the lower temperature end of the zone, and a ‘b’ the higher. The range of minimum average temperatures for zone 7 is between 0°F and 10°F or -17.8°C and -12.2°C. For example, in North Carolina, the mountain region is 7a while the Piedmont region is 7b. A more sophisticated algorithm was used to compile low-temperature values from actual weather reporting stations. The way to use the zone designation is to aid you in growing plant life that can survive the winter in your region. Within miles of each other, higher altitudes in the mountains and coastal areas of Arizona can be 2-3 zones cooler than urban and desert areas. Zones can be zoomed in on a closer scale. By knowing what plants can tolerate winter conditions in your zone, you can save quite a bit of time and money. These zones are meant to serve as a guide to you when you are making decisions about what to plant in your garden. These things are very important to your growing progress. And they included a Zip Code Lookup at the top of the page. This means we need plants that can take the cold of winter down below 10 degrees. The 2012 map was the first designed to be viewed via the internet. Plants are adaptable, surviving in many different climates. If you planted any winter lettuce, spinach, and parsley, you need to protect them from upcoming frost. It also makes it possible to separate small anomalies, like cities, which tend to be warmer than surrounding areas, cooler high elevation area and areas near large bodies of water into their proper zones. You won’t get as much detail from the regional maps, but you do get a sense of microclimates and how the geography affects the zones. Zone 11 represents any area where the average annual minimum temperature is above 40° F … Mapping was improved by using a Geographic Information System (GIS). You can download the USDA Plant Hardiness Map Site here. The above map shows the growing zones for Delaware. A few helpful tips about growing in this zone include: A common misperception is that it's not possible to grow citrus trees in this zone. The entire region is the same, Chino Valley, Prescott Valley and Prescott are all the same zone. Microclimates are variations within a hardiness zone, even within the radius of a gardeners yard. Zones 7-9 encompasses the southern United States. Zone 7a: This subzone has a minimum average temperature of 0° to 5° F. Zone 7b: This subzone has a minimum average temperature of 5° to 10°F. 1815 W. 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