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View the new 2023 Illinois Hardiness Zone Map. Based on the 1990 USDA Hardiness Zone Map, this interactive version covers the state of Illinois which ranges from USDA Zone 4b to USDA Zone 6b.
Hardiness Zones, also referred to as Growing Zones or Planting zones are defined by the U.S. Department of Agriculture (USDA) Agricultural Research Service (ARS). The zones in this map were created in 2023 using mean extreme climate data covering the period of 1991 to 2020.
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.
27 sie 2024 · By understanding the best time to plant roses in Arizona based on planting zones, selecting the right location, preparing the soil properly, and caring for your roses after planting, you can enjoy beautiful blooms and fragrant flowers in your garden.
5 lip 2024 · Here's a list of 54 USDA hardiness growing zone maps for the United States and a selection of territories and districts. To read each map, click on the picture or header to see the full-size map. Look for the color-coded legend of zones, and match up the correct color and zone to where you live.
18 lip 2024 · Planting roses in Arizona can be quite the adventure, thanks to our varied climates and unique soil conditions. From the sizzling heat of Phoenix to the cooler breezes of Flagstaff, the right timing can make all the difference. For Zones 7a-8b, the best time to plant new roses is during fall or early spring.
16 lis 2023 · The USDA released their new Plant Hardiness Zone map, which shows significant changes in Illinois’ hardiness zones, reflecting the impact of human-caused climate change. The newest Illinois maps is available here.
