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Hardiness Zones (Plants)

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 Websites presented in alphabetical order

American Horticultural Society Heat Zone Map view detail comment email this

"The 12 zones of the map indicate the average number of days each year that a given region experiences 'heat days'--temperatures over 86 degrees (30 degrees Celsius)." The site has a Zip Code Zone Finder (1997 data) so users can determine their garden's heat zone and choose plants accordingly. The heat zones complement the well-known system of USDA Hardiness Zones, which measure winter cold in a similar fashion.
http://www.ahs.org/publications/heat_zone_map.htm
Topics: Plants, Scientific Themes, Weather
Last updated Aug 28, 2004


Home Gardening Online view detail comment email this

This site features a gardening calendar and seasonal plants for the southeastern New York region (USDA Plant Hardiness Zones 6a and 6b), seasonal gardening FAQs, and fact sheets on topics such as orchid cultivation, tropical houseplants, butterfly gardens, requirements for indoor holiday gift plants, and garden site inventory analysis. From the New York Botanical Garden. Registration (free) required.
http://www.nybg.org/hgc_online/
Topics: Gardening, Plants, Weather
Last updated Nov 6, 2005


iloveplants.com view detail comment email this

This directory of plant and garden related items provides information about plants and seeds; products; general garden information (including such things as farmer's markets, mulching, and where to by beneficial bugs); events calendars; community gardens; catalogs; arboretums, botanical, and historical gardens; extension offices; master gardener programs; and associations and societies. Features facts and growing tips for fruits and vegetables. The Garden Zone gives plant hardiness information for the U.S., Canada, and Europe. Offers free access to an online forum and monthly newsletter.
http://www.iloveplants.com/
Topics: Crops, Plants, Weather
Last updated Mar 21, 2005


Month by Month Planting Calendar view detail comment email this

This site presents lists for each month of flowering plants that may be planted in gardens in the United States. The site notes, "each gardening zone is a range of micro-climates, so your newspaper or regional gardening publications (in print and on the Web) are good sources of local gardening information." Also includes access to the USDA Plant Hardiness Zone Map. From a site that provides information to homeowners.
http://www.demesne.info/Garden-Help/Planting-Calendar/
Topics: Agriculture, Crops, Plants, Weather
Last updated May 12, 2005


Plants That Tolerate Drought & Dry Conditions view detail comment email this

Floridata's list of drought-resistant plants, listed by type (trees, shrubs, palms, grasses, perennials, annuals, cactus and succulents, and vines). Within types, plants are listed by scientific name with common names alongside, and information about them includes photographs, description, culture, warnings, and hardiness zone.
http://www.floridata.com/lists/drought_tolerant_plants.cfm
Topics: Gardening, Photograph Collections, Photograph Collections: Nature & Wildlife, Plants, Plants by Name, Weather
Last updated Apr 5, 2004


USDA Plant Hardiness Zone Map view detail comment email this

This interactive document from the U.S. Department of Agriculture shows 10 different minimum temperature zones in the United States, Canada, and Mexico, "each of which represents an area of winter hardiness for the plants of agriculture and our natural landscape. It also introduces zone 11 to represent areas ... that are ... essentially frost free." Also includes information about the creation of the map, and indicator plant examples for selected woody plants.
http://www.usna.usda.gov/Hardzone/
Topics: Agriculture, Maps by Place, Plants, Scientific Themes, U.S. Maps, Weather
Last updated Oct 14, 2004




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