The USDA Plant Hardiness Zone Map is the standard by which gardeners and growers can determine which perennial plants are most likely to thrive at a location. The map is based on the average annual extreme minimum winter temperature, displayed as 10-degree F zones and 5-degree F half zones. A broadband internet connection is recommended for the ...

USA Zone 8b. Extreme Minimum Temperate −9.4 to −6.7°C (15 to 20°F) Temperate Year Round - Mild Winters, Hot Summers. Indicative Towns: Austin, Texas; Gainesville, Florida. Zone 8b zone has a temperate climate classified as oceanic or marine west coast (Köppen Cfb). Zone 8 included a large part of southern United States.

May 13, 2024 · The climate change as indicated by the new zone map will have an impact in the South, especially if the area continues to experience droughts. This will result in a shorter growing season. A greater impact may be noticed as you go north, where the area may experience more insect and disease pressure due to mild winters, and a shift in vegetable ...

Feb 8, 2024 · The USDA defined hardiness zones for North America and created a map in 1960 that outlines those zones. The map was updated in 1965, 1990, 2012, and most recently in 2023. A hardiness zone is defined by its lowest average annual temperature.

USDA Hardiness Zones and Average Annual Minimum Temperature Range. Zones 2-10 in the map have been subdivided into light and dark colored sections (a and b) that represent 5° F (2.8° C) differences within the 10° F (5.6° C) zone. The light color of each zone represents the colder section; the dark color, the warmer section.

Jun 7, 2017 · Zone 8b has a low temperature of 15 to 20 Fahrenheit and -6.7 to -9.4 Celsius, spanning all the way across the US; from coastal areas of the northwest and California through central Arizona and southern Texas, to across south Georgia and north Florida, the southern interior region of southeast Australia, southern interior regions of Europe ...

Nov 22, 2023 · It's essential to periodically update the map to reflect shifts in temperature patterns and to provide accurate information for gardeners and horticulturists. Louisiana’s 2023 zoning has been adjusted, with north Louisiana now classified as zone 8b and the southernmost tip as zone 10a — each moving up by half a zone.

Gilmour’s Interactive U.S. Planting Zone Map for 2019 combines data from the USDA with specific geographical information to provide a complete look at your growing area. Each of the 13 zones on our interactive planting zone map is broken down into two parts to give 5-degree increments in each zone. ... Zone 8b has a minimum average ...

Jul 5, 2024 · The 2023 map is about 2.5 degrees warmer across the continental United States than the former 2012 maps. The USDA has kept records for decades, publishing the first growing zone map in 1960. Here's a list of 54 USDA hardiness growing zone maps for the United States and a selection of territories and districts.

Zone: 8b (According to the new 2023 map) Zone: 8b (According to the 2012 map) Zone: 7b (According to the older 1990 map) City: Marysville; State: WA; View our Planting Calendar for your area; Find gardening events in your area; Check out our Plants Database