New Orleans, Louisiana is in USDA Hardiness Zones 9a and 9b.
|New Mexico||New York||North Dakota|
|Last Order Date||9/14/2021|
Covington, Louisiana is in USDA Hardiness Zones 8b and 9a.
Louisiana includes just two zones, 8 and 9. The northern, central and some of the southern portions of the state are Zone 8, and coastal areas are Zone 9. The average minimum temperature in Zone 8 is 10 to 20 degrees and in Zone 9 is 20 to 30 degrees.
Zones 9 to 11 in the United States encompass such areas as Texas, California, Louisiana, Florida, and other southern areas of the states. Their characteristics regarding water vary, however, which is also a consideration when choosing plants.
US States in Hardiness Zone 8
In North America, Zone 8 is one of the warmest zones, containing much of the southern quarter of the United States, including much of North Carolina, South Carolina, Georgia, Alabama, Mississippi, Florida, Louisiana, Arkansas, Texas, Arizona, California, and coastal Oregon and Washington.
Zone 10: 30 to 40°F
Zone 10 sees some of the hottest temperatures in the U.S., prevalent in tropical places such as Southern California and Southern Florida. Plants in this zone can handle temperatures as low as 30 to 40°F. Common Plants: Bougainvillea (Bougainvillea spectabilis)
Plants in zone 9a will tolerate minimum temperatures of no lower than 20 to 25 degrees Fahrenheit. In 9b, the lowest temperature for flowers or plants should be 25 to 30 degrees Fahrenheit. Zone 9 occupies most of the lower states including California, Arizona, Texas, and Florida, to name a few.
Flowers for Zone 9a and 9b
appear in all regions, as do yarrows (Achillea spp.), butterfly plant or weed (Asclepias spp.), and large numbers of blooming sages (Salvia spp.). Black-eyed-Susans (Rudbekia spp.) and California poppies (Eschscholzia californica) bring golden blooms to all zone 9 landscapes.
|Zone||First Freeze Free Date||Last Freeze Free Date|
|8||March 15||November 15|
|9||February 1||November 30|
|Last Order Date||9/14/2021|
|Last Order Date||11/22/2021|
For example, Zone 8 has average lows ranging from 10 to 20 degrees Fahrenheit. Zone 9 has average lows ranging from 20 to 30 degrees Fahrenheit. Zone 9a average lows range from 20 to 25 degrees Fahrenheit, while Zone 9b average lows range from 25 to 30 degrees Fahrenheit.
USDA Zone 8 covers most of the Pacific Northwest and a great swath of the American South, including Texas and Florida.
Zone 10. Minimum temperatures: Zone 10a 30 to 35 degrees F, Zone 10b 35 to 40 degrees F. Example cities: Miami, Florida and Victorville, California.
Only extremely cold-hardy fall bulbs can be planted as perennials in Zones 3 and 4: Tulips, Daffodils, Hyacinths, and Snowdrops are popular options that usher in the spring with their welcome blooms.
Zones 1 through 3 have a very short planting window due to the frigid temperatures. Plant in the warmer times of the year. Zones 4 to 7 it is best to plant a few weeks before the first frost. Zones 8 to 11 can plant perennials almost any time of the year but it is best to plant when it is cooler.
Zone 6a is a little colder with an average winter temperature of -10 to -5 fahrenheit. Zone 6b is a little warmer with an average winter temperature of -5 to 0 fahrenheit. All plants and seed packets have the zones that the plant grows best with. This is basically the coldest area that plant is likely to survive in.
|Anchorage/Merrill Field||Zone 4b: -25°F to -20°F|
|Anderson||Zone 2b: -45°F to -40°F|
|Angoon||Zone 7b: 5°F to 10°F|
|Aniak||Zone 3a: -40°F to -35°F|
|1961-1990 zone||1981-2010 zone|
|Queen Charlotte City||6b||7b|
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