plant hardiness zones

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Each growing zone is 10F warmer or colder in an average winter than the adjacent zone.

. State For downloads of state maps click the state on the map you would like to see and then select a resolution. USDA Plant Hardiness Zone 1 is the coldest zone designation for the United States. To find your USDA Hardiness Zone enter your zip code or use the map below.

If you see a hardiness zone in a gardening catalog or plant description chances are it refers to this USDA map. 02 of 54 Alaska USDA Zone Map USDA USDA Zones 1a through 8b are represented in Alaska. Plant hardiness zone designations represent the average annual extreme minimum temperatures at a given location during a particular time period.

These zones are calculated based on average climatic conditions and altitude of each area. For example sites in Zone 4a reach an average low temperature of -30 to -25 F while sites in Zone 4b reach an average. Ad Delivering Quality Plants Trees to Your Doorstep for 15 Years.

Zone 1 Zone 2 Zone 3 Zone 4 Zone 5 Zone 6 Zone 7 Zone 8 Zone 9 Zone 10 Zone 11 Zone 12. In addition each zone is split in half. 1 01 of 54 Alabama USDA Zone Map USDA USDA Zones 7a through 9a are represented in Alabama.

Each zone represents ten degrees of temperature difference. It divides North America into eleven zones by minimum average annual temperatures. The USDA website has a feature where you can search by ZIP code to find your local plant hardiness zone.

We Deliver Plants Straight to Your Door. It combines information about a variety of climatic conditions across the entire country to produce a single map. Each major zone is divided into subzones a and b for example 3a.

Department of Agriculture USDA Plant Hardiness Zone Map. Maine spans Plant Hardiness Zones 3-6. The two most commonly referenced hardiness zone maps are those produced by the US.

You can then choose plants suggested for that USDA zone. Plant Hardiness Zone Map. Ad Unsure what to plant in your area.

The original map was developed in the 1960s for trees and shrubs. Use Gurneys Zone Finder to learn what plants work best in your area. The 2012 USDA Plant Hardiness Zone Map website includes an interactive-GIS map that allows the viewer to click down in scale to one-half mile.

View Maps This page allows you to find and download state regional and national Plant Hardiness Zone Maps at various resolutions. The organizations that publish plant hardiness zone information rely heavily on historical data when preparing their maps and documentation. Plant Hardiness Zones Plant hardiness and climate zones are designed to assist gardeners in identifying plant species suitable for their climate.

Hardiness zones are the USDAs general guidelines of the temperatures a plant can survive. The lower the number is the lower the temperatures in that zone. Planting zones define generally which plants can survive winter in your area and the zones are typically listed in plant growing guides for reference.

In the United States the US. The harshest zone is 0 and the mildest is 8. Much of the state moved one zone warmer for example from 4a to 4b or 4b to 5a.

Department of Agriculture USDA and Natural Resources Canada NRC. It also includes national state and regional images in a variety of resolutions and a ZIP code finder that provides the plant hardiness zone for all US. Scroll to read more about each hardiness planting zone or jump directly to your zone using the links below.

Each zone is based on the 30-year average of the single coldest temperature recorded each winter. The USDA Hardiness Zone Map divides North America into 11 separate planting zones. What Do Hardiness Zones Mean.

Featured Video 03 of 54 Arizona USDA Zone Map USDA USDA Zones 4b through 10b are represented in Arizona. Scroll down to find the map you are interested in or begin by clicking on a location in the map to access maps for that area. Plant Hardiness Zones Nine zones indicate the areas where various trees shrubs and flowers are most likely to survive.

Zone 4 indicates average annual extreme minimum temperatures of -30 degrees Fahrenheit to -20 degrees Fahrenheit. If a plant is hardy in zones 5 through 8 it can be grown in zones 5 6 7 and 8. Ontario Plant Hardiness Zone Map Zone 0b -65F to -60F Zone 1a -60F to -55F Zone 1b -55F to -50F Zone 2a -50F to -45F Zone 2b -45F to -40F Zone 3a -40F to -35F Zone 3b -35F to -30F Zone 4a -30F to -25F Zone 4b -25F to -20F Zone 5a -20F to -15F - Leaflet Plantmaps OpenStreetMap Contributors Zone 5b -15F to -10F Zone 6a.

Shop Plants Trees Now. Department of Agriculture USDA Plant Hardiness Zone Map PHZM is the primary reference for de-ﬁning geospatial patterns of extreme winter cold for the horticulture and nursery industries home gardeners agrometeorologists and plant scientists. They do not reflect the coldest it has ever been or ever will be at a specific location but simply the average lowest winter temperature for the location over a specified time.

The USDA plant hardiness map is created and updated every few years by the US. The United Kingdom lies in USDA Plant Hardiness Zones 6 through 9 with some variations across. Zone 5 plants can survive winter temperatures no lower than -20 degrees F.

Plant Hardiness Zone Maps Canadas Plant Hardiness Zones. Different measures are used to create each. In the United States the US.

Canadas plant hardiness map provides insights about what can grow where. No Mess No Fuss All in the Comfort of Your Home. Zone 3 is 10 degrees F colder than Zone 4 etc.

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Hardiness Zone Map At Arborday Org