Hardiness zone - Revision history

Raffi: adding zone 12 which some sources use

2010-01-08T20:29:39Z

adding zone 12 which some sources use

Raffi: Reverted edits by Rina24 (Talk) to last revision by Trees

2009-10-08T17:57:05Z

Reverted edits by Rina24 (Talk) to last revision by Trees

Rina24 at 14:22, 8 October 2009

2009-10-08T14:22:22Z

Trees: diversify locations

2009-02-11T11:58:03Z

diversify locations

Show changes

Raffi at 22:14, 23 December 2008

2008-12-23T22:14:44Z

Raffi: adding USDA hardiness zone temprature breakouts chart in F and C

2008-12-23T21:55:39Z

adding USDA hardiness zone temprature breakouts chart in F and C

Raffi at 04:53, 22 December 2008

2008-12-22T04:53:37Z

Raffi: Reverted edits by 77.78.2.87 (Talk); changed back to last version by Raffi

2008-10-29T20:18:17Z

Reverted edits by 77.78.2.87 (Talk); changed back to last version by Raffi

77.78.2.87: /* Benefits and criticisms */

2008-10-29T07:59:52Z

Benefits and criticisms

Raffi at 19:37, 18 December 2007

2007-12-18T19:37:21Z

@@ Line 114: / Line 114: @@
 | align="center" | above 40 F
 | Santa Cruz, Tenerife; Mazatlan, Mexico; Brisbane, Australia
 |}

@@ Line 191: / Line 191: @@
 *[http://www.ncdc.noaa.gov/oa/climate/freezefrost/freezefrost.pdf Freeze/Frost data from NOAA]
 *[http://www.earlscliffe.com/climatic_zone_plants.htm Data on plant hardiness in Ireland]
 [[Category:Agriculture]]
 [[Category:Gardening]]

@@ Line 191: / Line 191: @@
 *[http://www.ncdc.noaa.gov/oa/climate/freezefrost/freezefrost.pdf Freeze/Frost data from NOAA]
 *[http://www.earlscliffe.com/climatic_zone_plants.htm Data on plant hardiness in Ireland]
 [[Category:Agriculture]]
 [[Category:Gardening]]

@@ Line 40: / Line 40: @@
 | Minneapolis/St.Paul, Minnesota;   Lewistown, Montana
 |-----
-| style="background: #XXXXXX" align="center"| 4b
+| style="background: #505596" align="center"| 4b
 | align="center" | -25 to -20 F
 | align="center" | -28.9 to -31.6 C
 | Northwood, Iowa; Nebraska
 |-----
-| style="background: #XXXXXX" align="center"| 5a
+| style="background: #B9C8A0" align="center"| 5a
 | align="center" | -20 to -15 F
 | align="center" | -26.2 to -28.8 C
 | Des Moines, Iowa;   Illinois
 |-----
-| style="background: #XXXXXX" align="center"| 5b
+| style="background: #55781E" align="center"| 5b
 | align="center" | -15 to -10 F
 | align="center" | -23.4 to -26.1 C
 | Columbia, Missouri;   Mansfield, Pennsylvania
 |-----
-| style="background: #XXXXXX" align="center"| 6a
+| style="background: #FADC78" align="center"| 6a
 | align="center" | -10 to -5 F
 | align="center" | -20.6 to -23.3 C
 | St. Louis, Missouri; Lebanon, Pennsylvania
 |-----
-| style="background: #XXXXXX" align="center"| 6b
+| style="background: #F5D21E" align="center"| 6b
 | align="center" | -5 to 0 F
 | align="center" | -17.8 to -20.5 C
 | McMinnville, Tennessee;   Branson, Missouri
 |-----
-| style="background: #XXXXXX" align="center"| 7a
+| style="background: #FAAAA0" align="center"| 7a
 | align="center" | 0 to 5 F
 | align="center" | -15.0 to -17.7 C
 | Oklahoma City, Oklahoma;   South Boston, Virginia
 |-----
-| style="background: #XXXXXX" align="center"| 7b
+| style="background: #F06E5A" align="center"| 7b
 | align="center" | 5 to 10 F
 | align="center" | -12.3 to -14.9 C
 | Little Rock, Arkansas;   Griffin, Georgia
 |-----
-| style="background: #XXXXXX" align="center"| 8a
+| style="background: #B49646" align="center"| 8a
 | align="center" | 10 to 15 F
 | align="center" | -9.5 to -12.2 C
 | Tifton, Georgia;   Dallas, Texas
 |-----
-| style="background: #XXXXXX" align="center"| 8b
+| style="background: #8C6419" align="center"| 8b
 | align="center" | 15 to 20 F
 | align="center" | -6.7 to -9.4 C
 | Austin, Texas;   Gainesville, Florida
 |-----
-| style="background: #XXXXXX" align="center"| 9a
+| style="background: #E6AF7D" align="center"| 9a
 | align="center" | 20 to 25 F
 | align="center" | -3.9 to -6.6 C
 | Houston, Texas;   St. Augustine, Florida
 |-----
-| style="background: #XXXXXX" align="center"| 9b
+| style="background: #DC9650" align="center"| 9b
 | align="center" | 25 to 30 F
 | align="center" | -1.2 to -3.8 C
 | Brownsville, Texas;   Fort Pierce, Florida
 |-----
-| style="background: #XXXXXX" align="center"| 10a
+| style="background: #E1B4A5" align="center"| 10a
 | align="center" | 30 to 35 F
 | align="center" | 1.6 to -1.1 C
 | Naples, Florida;   Victorville, California
 |-----
-| style="background: #XXXXXX" align="center"| 10b
+| style="background: #DC8C64" align="center"| 10b
 | align="center" | 35 to 40 F
 | align="center" | 4.4 to 1.7 C
 | Miami, Florida;   Coral Gables, Florida
 |-----
-| style="background: #XXXXXX" align="center"| 11
+| style="background: #E15000" align="center"| 11
 | align="center" | above 40 F
 | align="center" | above 4.5 C

@@ Line 1: / Line 1: @@
 [[Image:Zonescale.png|right|120px|thumb|Temperature scale of hardiness zones, showing the average annual minimum temperature boundaries for the zones]]
 A '''hardiness zone''' is a geographically-defined zone in which a specific category of [[plant]] life is capable of growing, as defined by [[temperature]] hardiness, or ability to withstand the minimum temperatures of the zone. The zones were first developed by the [[United States Department of Agriculture]] (USDA), and have subsequently been adopted elsewhere. They are categorized according to the mean of the lowest temperature recorded each winter, termed the "average annual minimum temperature". Thus if five successive winters reach respective minima of &minus;14 °C, &minus;12 °C, &minus;8 °C, &minus;16 °C, and &minus;13 °C, the mean coldest temperature is &minus;12.6 °C, placing the site in zone 7.
 ==Benefits and criticisms==

@@ Line 13: / Line 13: @@
 An alternative system for describing plant hardiness is to use indicator plants (the USDA also publishes a list of these to go with their map). Common plants with known limits to their range are used. For example, many people will know whether lemons will grow in their locality. If you then say Geraldton Wax will grow more or less where lemons will grow you have defined the range of Geraldton Wax with some accuracy (whether or not it will flower is another problem). Unfortunately no two plant species have exactly the same requirements and there are even within-species differences. 'Meyer' lemons, for example, are more cold tolerant than 'Eureka'. You can really only define core areas and they are often fairly arbitrary.
-==United Kingdom and Ireland Hardiness Zones==
+==Europe hardiness zones==
 [[Image:UK zonemap.png|thumb|UK hardiness zones]]
 Due to the moderating effect of the [[Gulf Stream]] on the [[Ireland|Irish]] and [[United Kingdom|UK]]'s [[temperate]] [[maritime climate]], the UK, and Ireland even more so, have rather milder winters than their northerly position suggests.
@@ Line 30: / Line 33: @@
 The 1990 map shows 10 different zones, each of which represents an area of winter hardiness for the plants of agriculture and our natural landscape.  This was revised to introduce zone 11, representing areas that have average annual minimum temperatures above 40°F (4.4°C) and that are therefore essentially frost-free.
 ===Updates===
@@ Line 109: / Line 114: @@
 There are problems with this classifications of this type: the spread of weather stations is insufficient to give clear zones and too many places with different climates are lumped together. Only 738 Australian stations have records of more than ten years (one station per 98,491 hectares), though more populated areas have relatively fewer hectares per station. Local factors such as aspect, altitude, proximity to the sea also complicate the matter. For example, Mt. Isa has three climatic stations with more than a ten year record. One is in Zone 4a, one in Zone 4b and the other is in Zone 5a. Likewise, Sydney residents can choose between Zones 3a and 4b. Most other cities have similar problems. Different locations in the same city are suitable for different plants, making it hard to draw a meaningful map. There may even be a case for publishing a list of weather stations and their zone classification to allow best use of local conditions.
 ==See also==

@@ Line 90: / Line 90: @@
 |-
 |}
 ==Australian Hardiness Zones==