Planting zones are used as guidelines to determine the hardiness and survivability of various trees and plant species in each geographic area.The hardiness zones are based on local climate. The USDA determined the zones using average annual minimum temperatures in each region.
Hardiness zones were created to segment the country (and now the world) into areas showing the minimum temperatures one can expect to find in that region.
Understanding hardiness zones means you can pick plants for your garden that will be most likely to survive your local winters. The zones are not important for annuals since these are plants you would only expect to survive the summer months, or one season.
Understanding and locating the root zone is a crucial part of gardening. As roots are the starting point of a plant’s vascular system, knowing the root zone of the plant will help the gardener cater to the needs of the plant in a more efficient manner.
The Zone Hardiness Link on our website’s left margin connects directly to this map. Fall Planting and Cold Season Tips. Fall planting is a good thing to do in Zones 7 and warmer. An exception is that we do not recommend planting the Teas, Noisettes, and Chinas after mid summer in Zones 7 and 8a. If you prefer delayed shipping, we will.
Knowing your zone, though, can help you determine which perennials, trees and shrubs are likely to survive in your climate. Plants at nurseries and garden centers are labeled with their hardiness zones. Catalogs and garden books and magazines also use planting zones to aid gardeners. Limitations.
Plant Hardiness Zone Map of the British Isles. The plant hardiness zone map of the British Isles is the most detailed ever to be created for this region, and is the product of many months work studying the average winter climate statistics for the periods 1961 to 2000 recorded by the Irish and UK Met Offices.
Zone 10 encompasses areas in Florida where long pants are considered cold weather dress. Georgia was said to include Zones 7 and 8. The hardiness map was revised in 1990, dividing each zone into two sub-zones, contrasting with each other by only a five degree difference in winter low temperatures.