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GardenMark
Home & Garden
Recycled Plastic Picnic Tables, Garden Benches & Garden Accessories
For homeowners, contractors, & landscape professionals. Featuring a wide selection of recycled plastic picnic tables, yard, garden & park benches, outdoor chairs, outdoor bars, recycling centers & trash receptacles, raised bed garden kits, planter boxes, deck & dock storage boxes, playground equipment & other unique home and garden accessories.
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NorthWest Builders
Network, Inc.
1158 High St.
Suite #203
Eugene, Oregon 97401
Fax: 541-868-0793
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 Home
Articles
Hardiness Zones
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Hardiness
Zones
Suitable hardiness means a plant can be expected to grow in the zone's
temperature extremes, as determined by the lowest average annual temperature.
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US
Hardiness Zones |
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Lookup
Your Zone |
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What are Hardiness Zones?
 The Plant Hardiness Zones divide the United States and Canada into 11
areas based on a 10 degree Fahrenheit difference in the average annual
minimum temperature. (The United States falls within Zones 2 through
10). For example, the lowest average temperature in Zone 2 is -50 to
-40 degrees Fahrenheit, while the minimum average temperature in zone
10 is +30 to +40 degrees Fahrenheit. See more.
Suggested hardiness zones have been indicated for all trees and perennials
available online from the Foundation. If a range of zones, for example,
zones 4-9, is indicated, the tree or perennial is known to be hardy in
zones 4, 5, 6, 7, 8, and 9. Suitable hardiness means a plant can be expected
to grow in the zone's temperature extremes, as determined by the lowest
average annual temperature.
Keep in mind that local variations such as moisture, soil, winds, and
other conditions might affect the viability of individual plants.
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