How To Evaluate Plant Hardiness Zones

Posted by Burt
Apr 04 2010

Plant hardiness zones are a basic guide for picking out plants which could flourish in your region, and these zones are dependant on seasonal temperature variations. Certain vegetables, for example, have to have prolonged, cool spring evenings to establish roots, which they won’t find in Atlanta. Others require many months of balmy sunshine to mature correctly, which they can’t get in Duluth.  Don’t forget to look at the Lawn Boy 10640 Gas Lawn Mower.

If you realize your plant hardiness zone before you begin ordering lettuce plants, you can find the variety which thrives in your area. Several years ago, the United States Department of Agriculture joined with Harvard University to sketch a map of the United States determined by lowest and highest seasonal temperatures. Another must see is the McCulloch MCS2001 14-Amp Electric Chipper/Shredder.

This is generally labeled the USDA map and is the ordinary guideline for plant hardiness in certain regions. The map divides North america into 11 zones. Zone 1 is the coldest but zone 11 is the warmest. Usually, colder zones exist at higher elevations  or in locales farther to the north.

Hardiness zones only function as a basic plan for choosing and growing plants, however.

Consider that Houston Texas, and Portland, Oregon, are known to be within the same hardiness zone, but have dramatically different weather patterns. When choosing a plant, you must furthermore consider the quantity of sun and water it must have, in addition to the sort of earth for which it is optimally suited.

If these zones are referred to with regard to plants, you might perceive different ranges of detail.

For example, if a plant is just referred to as being hardy to zone 6, you only know that the plant will endure winters in that zone and will do well in any milder zones with higher numbers. Often a selection of zones is listed, as in “zones 4-9”. This tells us that the plants will thrive exclusively in these zones; they are not going to endure the hotter or cooler temperatures in other zones.

If you understand your hardiness zone, you’ll still find it useful to work with a local nursery before you start your garden. You could live in a microclimate which is hotter or colder than the USDA zone which relates to your vicinity, or your soil type could complicate things for a plant which might otherwise do great in your climate.Don’t forget, these zones are excellent starting points, but they must be viewed primarily as guidelines.

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