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| | Plant Hardiness Zones for Australia |
 | | Plant hardiness refers to their ability to survive the conditions of a particular location, including tolerance of heat, soil moisture, humidity and so on. | | | Plant hardiness maps allow producers to label their plants as being suitable for particular areas, and, in theory at least, this results in happy customers who can confidently buy plants that will survive in their locality. | | | Also, many plants will survive in a locality but won't flower if the daylength is inappropriate or if they require vernalisation (a particular duration of low temperature). |
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http://www.anbg.gov.au/hort.research/zones.html
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| | Plant Hardiness Zones in Canada |
| | In 1967, Agriculture Canada scientists created a plant hardiness map using Canadian plant survival data and a wider range of climatic variables, including minimum winter temperatures, length of the frost-free period, summer rainfall, maximum temperatures, snow cover, January rainfall and maximum wind speed. | | | The Plant Hardiness Zones map outlines the different zones in Canada where various types of trees, shrubs and flowers will most likely survive. | | | Relatively few plants are suited to zone 0. |
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http://sis.agr.gc.ca/cansis/nsdb/climate/hardiness/intro.html
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| | Plant Delights Nursery -- Plant Hardiness |
| | Plants are similar, in that seed taken from a tree in Minnesota will be more cold hardy than seed taken from the same type of tree in Florida. | | | Many plants, due to their with metabolism derived in a cool night climate are not hardy in areas, simply because of their warm nights temperatures. | | | There are a number of plants that can survive 0 degrees F for a couple of hours, that could not survive these temperatures for a longer period, or more than once during a winter. |
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http://www.plantdelights.com/Tony/hardiness.html
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| | Cold Hardiness |
| | Deacclimation refers to a decrease in the hardiness of plant tissues in response to warming temperatures in late winter and early spring. | | | Because these plants bloom on current year's canes as well as on previous years' wood, their flowering was less affected during the spring of 1990. | | | Comparisons of mid-winter hardiness levels of container-grown plants in the overwintering greenhouse and field-grown plants for each of five cultivars and one species were attempted. |
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http://extension.umn.edu/distribution/horticulture/components/6594-04.html
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| | Cultural Control/Plant Hardiness |
| | The term hardiness usually refers to a plant’s ability to survive the coldest winter temperatures likely to occur in a given area. | | | Plants suited to this hardiness zone are able to tolerate winter temperatures down to about -10 or -15 degrees Fahrenheit. | | | Plants rated for a higher USDA hardiness zone, that is 7 or above, would likely show some winter damage when planted in Kentucky and might also fail to thrive in our climate. |
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http://www.uky.edu/Ag/Horticulture/landipm/ipm/hardiness.htm
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| | Hardiness |
| | Plant hardiness is generally considered to be the lowest temperature that a plant can withstand during the winter. | | | The fact that plants commonly grown in the higher US Zones do not flourish in the equivalent European Zones indicates that there is more to plant hardiness than an ability to withstand winter temperatures. | | | These plants do not thrive in the northern European climate, so there must be other factors which determine where a plant can grow which have a greater influence than the lowest winter temperature it can withstand. |
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http://theseedsite.co.uk/hardiness.html
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| | Plant Hardiness Zone Map of Maine |
| | Plants are categorized as sun, partial shade or shade plants, depending on the amount of light they thrive in. | | | Plants that are marginally hardy to a location may succumb in an extremely cold winter. | | | These nutrients are more available to plants if the soil pH (acidity or alkalinity) is at an optimum level. |
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http://www.umext.maine.edu/onlinepubs/htmpubs/2242.htm
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| | Hardiness Zone Map |
| | Basically, plant hardiness zones are a guide to help you know which plants will grow where you live, so you don't plant things that will soon die just because they can't manage your region's temperatures. | | | Plant encyclopedias may refer simply, for example, to "Zone 6," which generally means that the plant is hardy to that zone (and will endure winters there), and generally can withstand all the warmer zones below. | | | Gardeners in the western United States sometimes are confused when confronted with the 11 Hardiness Zones created by the USDA (United States Department of Agriculture), because they are used to a 24-zone climate system created 40 years ago by Sunset Magazine. |
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http://www.backyardgardener.com/zone
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| | FarmGate Plant Hardiness Zones and Gardening Calendar |
| | Coarse seed should be planted to a depth of no more than 3 times the diameter of the seed. | | | There are some plants that you can transplant and seed right into the ground now. | | | Once the plant is planted, then water the ground around the stem lightly. |
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http://www.tdc.ca/gardencalendar.htm
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| | National Arboretum - USDA Plant Hardiness Zone Map: Information |
| | Plants grow best within an optimum range of temperatures; and the range may be wide for some species, narrow for others. | | | Survival of landscape plants over winter was selected as the most critical criterion in their adaptation to the environment. | | | The way plants are placed in the landscape, how they are planted, and their size and health can greatly influence satisfactory adaptability. |
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http://www.regannursery.com/getting_started/usda/map_details.html
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| | North American Plant Hardiness Zones |
| | By this we mean the plant can survive to -20F (-29C) in winter, but the summer temperatures found in Zone 9 will be too warm for the plant to survive. | | | That is, the plant will consume more energy trying to survive than it can create with its normal metabolic processes. | | | When we say a plant is rated to Zone 6, we mean it will generally not survive the winter below -10F (-23C). |
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http://users.lycaeum.org/~npkaye/zones.html
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| | Plant hardiness zones will guide your gardening activities. |
| | Plant hardiness zone maps are great in general for determining which plants you can grow in the region you live. | | | Plants and flowers are highly dependant upon many different environmental conditions including heat, rainfall, frost, sunlight, altitude, and others. | | | The really neat thing about this is you can have plants and flowers from different hardiness zones growing in your garden at the same time. |
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http://www.flower-gardens-advisor.com/Plant-Hardiness-Zones.html
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| | Plant Hardiness Zones |
| | The United States Department of Agriculture Plant Hardiness Zone Map is a generalized map of the average annual minimum temperatures in the United States and Canada. | | | There are, of course, many factors that determine a plant's suitability to a particular region, but the USDA Hardiness Zone Map is the best single indicator for determining where a particular plant can tolerate the winters. | | | Its purpose is to show where the minimum winter temperature is, on average, within the limits of a particular plant's tolerance to cold. |
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http://www.floridata.com/tracks/zones/zones.htm
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| | USA_zones |
| | Plants usually survive cold better in a drier situation than a wet one, deciduous plants fare better in in more exposed situations, especially in areas with higher summer temperatures, evergreens prefer a more sheltered position, more humidity and cooler summers. | | | Wind can damage plants not just by breaking branches or uprooting trees but also wind chill, increased leaf transpiration (water loss), industrial pollutants or sea salt carried by the wind, drying of the soil and by preventing beneficial insects from doing their work. | | | If you use a wall for protection remember that there will be turbulance downwind (although this may be significantly reduced by some kind of baffle) and that the side of a wall facing the sun will act as a heat trap. |
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http://www.b-and-t-world-seeds.com/Usa_zone.htm
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| | USDA Hardiness Zones |
| | Hardiness is affected by duration and intensity of sunlight, length of growing season, amount and timing of rainfall, length and severity of summer drought, soil characteristics, proximity to a large body of water, slope, frost occurrence, humidity, and cultural practices. | | | Plants can be classified as either hardy or nonhardy, depending upon their ability to withstand cold temperatures. | | | A plant is said to be hardy if it can tolerate the lowest average winter temperatures that usually occurs in a zone. |
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http://www.ces.ncsu.edu/depts/hort/consumer/weather/hardiness_zones.html
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| | Plant Hardiness Zone Maps |
| | The first plant hardiness zone map for the United States and Canada was developed by the USDA in 1960. | | | In fact, plant survival in a particular region can be predicted with a great degree of accuracy by knowing something about hardiness zones and corresponding zone ratings given to woody and herbaceous landscape plants. | | | Many plants may survive in zones warmer or colder than their designated zones, but mere survival does not necessarily represent satisfactory performance. |
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http://www.ipm.iastate.edu/ipm/hortnews/1996/2-9-1996/zones.html
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| | Hardiness |
| | The concept of the hardiness of a plant is frequently considered purely in terms of the minimum temperature that a plant can survive on a cold night, but in reality it is much more complex than that. | | | Some plants that can survive 0F if kept dry will succumb to 15F if their roots are in wet soil. | | | If the plant is located at a low point relative to the immediately surrounding area, then in cold, still conditions cold air will flow to it from the surroundings, making it several degrees colder than neighbouring spots. |
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http://homepages.nildram.co.uk/~jimella/hardinss.htm
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| | Plant Hardiness--Ornamental Horticulture Leaflet 54 |
| | A particular, plant such as impatiens, may be perennial in a southern or warmer climate, only to be annual if moved to a colder climate. | | | If a soil is heavy, wet, of low pH or low fertility, or in general not suited to the plant, it can cause stress that may result in winter injury. | | | Although this will not guarantee hardiness, as mother nature can't be predicted, it should result in minimal loss to plants from winter injury. |
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http://www.uvm.edu/~uvmext/publications/oh/oh54.htm
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| | Choosing Landscape Plants - Trees and Shrubs - Lawn Care & Landscaping Resource Center - TruGreen |
| | Bare root plants, which are limited in size, are generally available only in spring and must be planted soon after purchasing. | | | Ornamental plants corresponding to a tropical Zone 10 or 11 on the USDA zone map likely would not survive the winters in Zone 5, where winter temperatures can sink to minus 10-20 degrees. | | | Also be aware that the larger the plant you select, the harder it may be to re-establish it in your own landscape. |
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http://www.trugreen.com/tg/resourcecenter/treesAndShrubs/plants.dsp
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| | Liddle Wonder's Plant Hardiness Zones |
| | Thus, a plant that is able to tolerate a light frost is assigned to zone 9, where average minimum temperatures range from -1°C to -5°C. Plants adopt a range of mechanisms to help them handle cold temperatures. | | | As with all plant and growing circumstances, we cannot over-emphasize the importance of local conditions. | | | For many years we've found the United States Department of Agriculture's Plant Hardiness Zones useful in assessing a plant's suitability for our climate. |
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http://www.liddlewonder.co.nz/zones
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| | The National Arbor Day Foundation - We Help People Plant and Care for Trees |
| | Suitable hardiness means a plant can be expected to grow in the zone's temperature extremes, as determined by the lowest average annual temperature. | | | 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. | | | 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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http://www.arborday.org/trees/whatzone.html
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| | Plant Hardiness Zones Defined, 2005 MSUE Press release |
| | Always identify the plant hardiness zone rating for plant material you are looking at. | | | Sometimes plants that are listed for zone 6 can also survive in zone 5. | | | If you are an avid gardener, you are accustomed to watching for the hardiness zone numbers and what plants will and will not survive in the zone you reside in. |
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http://www.kalcounty.com/msue/releases05/hardiness2005.htm
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| | Gardening in Wisconsin: USDA Plant Hardiness Zones |
| | USDA plant hardiness zones are used to select perennials, landscape plantings and fruit trees that will survive over winter in your location. | | | This is an enlarged version of the 1990 USDA Plant Hardiness Zone Map, for the state of Wisconsin. | | | A plant not fully dormant can be damaged at much warmer temperatures. |
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http://www.wisconline.com/almanac/gardening/hardiness.html
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| | Plant Hardiness Zones |
| | This gives the plants time to develop into the surrounding soil and the root system is more established prior to winter onset. | | | With fall planting, the watering requirements are less. | | | These ratings are just a guide, local temperatures, plant location, culture, moisture, wind, etc. are all climatic conditions that can vary with any location. |
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http://www.australiaplants.com/plant_hardiness_zones.htm
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| | A to Z's of Home Gardening: Plant Hardiness Zones |
| | Plant Hardiness zones represents the average low temperature range for an area. | | | By knowing the hardiness zone you live in, you can select the right plants to grow for your area. | | | well, each plant has a minimum temperature range in which it can survive during the winter months. |
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http://www.gardenersnet.com/atoz/hardy.htm
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| | PlantHardinessMaps |
| | Farmers and gardeners use the map to learn where it’s safest to plant various kinds of crops. | | | In 1960, the United States Department of Agriculture (USDA) published a Plant Hardiness Zone Map. | | | The Plant Hardiness Zone Map divides the US and Canada into zones. |
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http://www.iceagenow.com/PlantHardinessMaps.htm
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| | Fernlea Flowers ~ Plant Hardiness Zone Map |
| | This map can be used to help you select the best plants for your garden, and to determine when to plant. | | | When buying plants at your local garden center you may want to ask questions concerning specific plants in your geographical climate. | | | Most plants can grow successfully in a range of zones. |
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http://www.fernlea.com/zone.htm
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| | Plant Hardiness |
| | Knowledge of a plant’s hardiness limitations is essential for success in growing. | | | However, hardiness or "survivability" of plants also includes summer heat tolerance, water requirements, and humidity needs. | | | The American Horticultural Society (AHS) has produced a plant heat-zone map, designating the average number of days per year that temperatures exceed 86°F (the point at which plants begin suffering physiological damage from heat). |
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http://www.hcs.ohio-state.edu/mgonline/botany/env03/02env03.htm
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| | USDA Plant Hardiness Zone Map |
| | The US Department of Agriculture Plant Hardiness Zone Map, revised in 1990, shows the lowest temperatures that can be expected each year in the United States. | | | The different zones represent areas of winter hardiness for agricultural and natural landscape plants. | | | So use a zone to determine minimum temperature thresholds and our ranges to determine broad climate tolerances. |
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http://www.sunlightgardens.com/hardinesszones.html
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| | Gardening Calendar |
| | Plant hardiness zones refer to geographic areas where the growing season of plants is determined by the time of killing frosts in the spring and fall. | | | Even within zones, climatic factors such as altitude, proximity to water, wind exposure, winter sun exposure and snow cover contribute to the existence of different "microclimates" and can influence plant adaptability. | | | Click here to view the USDA Plant Hardiness Zone Map. |
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http://www.nybg.org/plants/calendar.html
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| | USDA 2003 Plant Hardiness Zone Map Revised |
| | The draft version of the Plant Hardiness 2003 Map is currently being reviewed by the USDA's Agricultural Research Service (ARS). | | | Since updated temperature records were used to create this new version, "minor regional variances in temperature" that have taken place over the last 20 years |
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http://www.herbaltreas.com/USDARevisedMap.html
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| | Gardening and Plant Hardiness Zones for the United States |
| | The USDA Plant Hardiness Zone Map factors in average winter minimum temperatures. | | | Most planting directions are based on the average last frost date. | | | This collection of information starts with Zone 1, where minimum temperatures can go down to MINUS 50 degrees Fahrenheit, and ranges to Zone 11, for the lucky gardeners in Hawaii and extreme Southern Florida where lows don't drop below 40 degrees Fahrenheit. |
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http://www.thegardenhelper.com/hardiness.htm
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| | Gardening Tips by John Begeman: Plant Hardiness Zones |
| | The first step in determining what garden and landscape plants grow in the Tucson area is to look to the plant hardiness zone maps. | | | For instance, certain fruiting plants, such as raspberries, must have a minimum number of chilling hours during the winter. | | | The USDA hardiness zone map is based on winter minimum temperatures and little else. |
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http://ag.arizona.edu/gardening/news/articles/11.20.html
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| | Plant Hardiness Zone Details |
| | In 1967, Agriculture Canada scientists created a plant hardiness map using Canadian plant survival data and a wider range of climatic variables, including minimum winter temperatures, length of the frost-free period, summer rainfall, maximum temperatures, snow cover, January rainfall and maximum wind speed. | | | In 1990 the USDA updated their plant hardiness zones map. | | | Also not all Zone Maps and Plant Hardiness Information uses the USDA system. |
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http://www.overthegardengate.net/zones.asp
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| | Plant Hardiness |
| | All of our plants are hardy to USDA Zone 4. | | | Our plants commonly experience temperatures in excess of 100 degrees F., with no ill effects. | | | We are often subjected to oppressive heat and humidity in July and August, but the native plants take it right in stride. |
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http://www.american-natives.com/MainPgs/hardi.htm
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| | Plant hardiness zones and average frost dates |
| | Provided by the U.S. Department of Agriculture, this zone map indicates the recommended range in which plants will grow well. | | | Includes bloom time, plant height and light requirements. | | | Knowing this piece of gardening information will enable you to select the right plants for your location. |
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http://www.lewisgardens.com/thanksandzone.htm
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| | PLANT -Winter Hardiness |
| | Selecting Hardy Roses for Northern Climates - U. Spring and Fall Frost-freeze Risks in Indiana - Purdue U. Temperature Disorders: Getting to the Root of Woody Plant Stress - OH St. U. | | | Preparing Plants for Winter - Part 2: Protection Techniques - NC St. U. | | | How Woody Plants Survive Extreme Cold - IA St. U. |
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http://bluestem.hort.purdue.edu/plant/FMPro?-DB=plant.fp3&-Format=category.html&-Max=100&-SortField=Description&category=Winter%Hardiness&-Find
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| | Plant Hardiness: Cookeville TN |
| | The soil is generally acidic in the pH range of 5.5 to 6.2. | | | A soil test is the only reliable way to know what levels of fertilizer and lime should be added to improve soil production for specific plantings. | | | Plateau Gardening Home Page | Notes and photos spring 2005 | MG Links and Downloads | About Master Gardeners in Crossville TN | Plant Hardiness: Cookeville TN | Plant Hardiness: |
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http://www.volfirst.net/~mgardener/page5.html
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| | Plant Hardiness |
| | Hardiness depends on the severity of the winter and the specific variety of the plant. | | | Below is a list of some common water garden plants, listed by hardiness. | | | I move all of my lilies (Hardy) and the Hibiscus into the deepest area of the pond, and let winter come. |
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http://www.suite101.com/article.cfm/water_gardening/51783
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| | USDA plant hardiness zone map |
| | The zone ratings in practice are used to indicate not just mere survival of a plant species, but excellent adaptability of the species to the climate. | | | The original 11 zones became synonymous with “mean minimum temperature” because the zones were stratified by increments of ten degrees Fahrenheit, and were identified with the average lowest winter temperature for a geographic region. | | | The United States Department of Agriculture’s plant hardiness zones were originally developed in 1960 with the assistance of the American Horticultural Society. |
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http://www.crescentbloom.com/I/P/256.htm
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| | USDA Plant Hardiness Zone Map |
| | However, other factors, including soil type, moisture, drainage, humidity and exposure to sun and wind can have a direct effect on the success of a plant’s survival. | | | Use this as a guide, but keep the other factors in mind when deciding where and what to plant. | | | Hardiness zone is one guide to indicate a plant’s ability to withstand an average minimum temperature. |
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http://www.touchofnature.com/usda_plant_hardiness_zone_map.htm
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| | Plant Hardiness Data |
| | Contributors need to identify what plants, from a comprehensive list, survive at their location. | | | Our aim is to go beyond a single general map and develop potential range maps for individual species of trees, shrubs and perennial flowers. | | | Your contributions will be visible on interactive web maps and will help define the climatic and geographic limits of plants. |
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http://g4.glfc.cfs.nrcan.gc.ca/setlang.pl?redirect_url=/ph_main.pl
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| | Plant hardiness zones : gardening regions |
| | Use this chart to determine the plant hardiness zone you live in and to help you make wise choices when you select plants for your container gardening. | | | Every plant has been given a zone designation, so inquire if you are not sure. | | | This is most important when planting perennials and ordering from plant catalogs or nurseries outside of your region. |
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http://www.all-about-planters.com/articles/planters_zones.html
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| | WV Plant Hardiness Zones |
| | The USDA Plant Hardiness Zones divide the United States and southern Canada into 11 areas based on a 10 degree Farenheit difference in the average annual minimum temperature. | | | However, the plant search is conducted on the whole number zone range. | | | For example, for a site in zone 7 which borders zone 6: search first for zone 6 plants, secondly on zone 7 plants. |
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http://www.littlekanawha.com/WV_Hardiness_zones.htm
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| | Publications - American Horticultural Society - USDA Hardiness Zone Map |
| | The draft version of the revised United States Department of Agriculture (USDA) Plant Hardiness Zone Map, developed in 2003 by the American Horticultural Society, is no longer available. | | | The new version of the revised map will, like the draft map, include 15 plant hardiness zones to reflect growing regions for sub-tropical and tropical plants. | | | The USDA is in the process of creating another version of the hardiness map using new mapping technology and an extended set of meteorological data. |
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http://www.ahs.org/publications/usda_hardiness_zone_map.htm
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| | USDA Plant Hardiness Zones |
| | Generally, plants on either size (lower or higher) of your hardiness zone will still survive. | | | The following map is a generalized version of the US Department of Agriculture's Plant Hardiness Zones map. | | | The ratings listed under "Hardiness" in the plant descriptions correspond with this map. |
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http://www.waterwiseplants.utah.gov/hardiness.asp
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