New Gardening Zones 2024. Is about 2.5 degrees fahrenheit warmer than the last map 11 years. — the plant hardiness zone map was updated for the 2024 gardening season with the addition of thousands more local weather stations.
— but the map will give new guidance to growers about which flowers, vegetables and shrubs are most likely to thrive in a particular region. Department of agriculture (usda) today released a new version of its plant hardiness zone map (phzm), updating this valuable tool for gardeners and researchers for the first time since 2012.