The USDA Plant Hardiness Zone Map is the standard by which gardeners and growers can determine which perennial plants are most likely to thrive at a location. The map is based on the average annual extreme minimum winter temperature, displayed as 10-degree F zones and 5-degree F half zones.

The 2012 USDA Plant Hardiness Zone Map is the standard by which gardeners and growers can determine which plants are most likely to thrive at a location. The map is produced by the U.S. Department of Agriculture (USDA) Agricultural Research Service (ARS) …

2024年11月25日 · Which planting zone or gardening zone do you live in? Find the updated Plant hardiness zone maps for the United States and Canada, from The Old Farmer's Almanac.

A hardiness zone is a geographic area defined as having a certain average annual minimum temperature, a factor relevant to the survival of many plants. In some systems other statistics are included in the calculations.

Hardiness of plants describes their ability to survive adverse growing conditions. It is usually limited to discussions of climatic adversity. Thus a plant's ability to tolerate cold, heat, drought, flooding, or wind are typically considered measurements of hardiness.

2024年2月8日 · A hardiness zone is defined by its lowest average annual temperature. Each zone includes a ten degree range of average minimum temperatures. The coldest zone is 1 with average low temperatures between -50 and -60 degrees Fahrenheit (-45.6 and -51.1 Celsius).

2024年12月29日 · In a nutshell, hardiness zones tell you which plants you can or cannot grow in your climate. When we say that a plant is ‘hardy’ to a particular climate, we mean it can withstand its lowest wintertime temperatures. Try growing a zone-10 plant in …

2025年1月17日 · The USDA Hardiness Zone Map helps determine which plants will thrive in your area based on average annual minimum winter temperatures. Updated in November 2023, the USDA’s Agricultural Research Service (ARS) and Oregon State University’s PRISM Climate Group refined the map using 30-year averages.

2022年10月8日 · Hardiness refers to how well a plant will survive cold temperatures. Where the USDA zones fall short; however, is that they don’t account for other factors. These include freeze dates, freeze-thaw cycles, the effects of snow cover, precipitation, and elevation.

2023年12月6日 · The USDA Plant Hardiness Zone Map is an important tool for gardeners seeking to make informed decisions about plant selection. By understanding your local hardiness Zone, you can ensure the longevity and vitality of your garden.