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Save The Date: WAA/DNR Annual Conference, Feb. 25-27, 2024

Join the Wisconsin Department of Natural Resources (DNR) and the Wisconsin Arborist Association (WAA) for the 2024 Wisconsin Annual Urban Forestry Conference. The conference will be held from Feb. 25 to 27 at the KI Convention Center in Green Bay.

The DNR and the WAA have developed three days of enriching educational programming on the latest research, innovations, developments and arboriculture and urban forestry industry issues.

This conference is intended for professional arborists, community foresters, nursery professionals, park and recreation directors and staff, tree care workers, landscape architects, green industry professionals, community administrators, volunteers and students. Continue reading “Save The Date: WAA/DNR Annual Conference, Feb. 25-27, 2024”

New-And-Improved USDA Plant Hardiness Zone Map

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

WI USDA Plant Zone MapThirty years of data was reviewed by a group of horticultural, botanical and climatological experts for the latest USDA Plant Hardiness Zone Map revision. This was determined to be the best balance between the fluctuations of year-to-year weather variation and the concept that, during their lifetimes, perennial plants mostly experience what is termed “weather” rather than “climate.”  A complex algorithm was used for this edition of the Plant Hardiness Zone Map to enable more accurate interpolation between weather reporting stations. This method accounts for factors such as elevation change and proximity to bodies of water, making mapping zones more accurate. Continue reading “New-And-Improved USDA Plant Hardiness Zone Map”