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- The 2023 hardiness map identifies gardening “zones” using a 30-year average of cold weathe r, between 1991 and 2020, taken from thousands of weather stations across the country. These zones tell gardeners which plants will best survive the cold in their area and range from Zone 1 – the coldest – to the warmest Zone 13.
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1 day ago · Last November, the U.S. Department of Agriculture released an updated version of its Plant Hardiness Zone Map. A joint venture of USDA’s Agricultural Research Service and Oregon State University ...
1 day ago · A 7b designation translates to a minimum winter temperature range of 5-10° F. That’s similar to the type of winter we would have historically associated with Washington, D.C. Image 2: Changes in the USDA plant hardiness zones from 2012 to 2023. The changes in our climate reflected in the USDA’s new hardiness map have a lot of implications ...
2 days ago · In 2023, the United States Department of Agriculture (USDA) updated its Plant Hardiness Zone Map (PHZM) for the first time in 10 years.
1 day ago · Recently, the USDA updated its plant hardiness map for the first time in 11 years. If you’re a gardener — and everybody can be a gardener, even on a balcony or a stoop — this is a big deal! The updated map opens up new possibilities for home gardeners, but there are limits.
1 day ago · Daffodil ( Narcissus) The most adaptable of spring-flowering bulbs and happy in so many zones, the Jonquil and Tazetta types are best for zone 9. Windflower ( Anemone coronaria) Large, upward-facing spring flowers in bright colors are good in flower borders and for cutting. Best in sun and with good drainage.
11 hours ago · It's a general gauge of the climate in an area, letting gardeners and farmers know which plants will grow well in their zones. The federal Department of Agriculture made changes to the hardiness ...
