Horticulture
South Central Wisconsin Master Gardener Association
For more information on our Master Gardener program please visit our web by clicking this link.
USDA Plant Hardiness Zones for Wisconsin
USDA plant hardiness zones are used to select perennials, landscape plantings and fruit trees that will survive over winter in your location. Check the color of the section in your area on the state of Wisconsin map. USDA Hardiness Zones and Average Annual Minimum Temperatures are also included on this site.
Soil Sample Testing Available
Fertile soils are the foundation for a healthy lawn and productive garden. Getting your soil analyzed to know what you have to work with is often the first bit of advice given to anyone starting a new lawn or garden or trying to rejuvenate an existing one. Testing soil about once every three is usually adequate. Getting the soil analyzed is one thing, but interpreting the numbers and understanding the basis for recommendations based on those numbers is another. Read more information about USDA Plant Hardiness Zones for Wisconsin (.pdf).
For Horticulture Help:
- Call the Green County Extension Office to be directed to a Master Gardener. Phone: 608-328-9440
- Go to the UW-Extension Publications website to read and/or print publications
- Go to the InfoSource website to read and/or print fact sheets
- Visit the UW-Extension Office and review bulletins, fact sheets, and other printed resources
- Visit area landscape and garden centers and other businesses
- Use the related Horticulture Links below to find more information…
- Composting Links and Information
- UW – Department of Entomology Insect Diagnostic Lab
- UW – Extension Horticultural Publications
- UW-Extension Natural Resources Publications
- UW – Landscape Plants of the Upper Midwest
- UW – Plant Disease and Diagnostic Clinic
- UW – Soil and Plant Analysis Laboratory
- UW – The Wisconsin Gardener – Public TV
- UW – Urban Horticulture
- UW – Urban Horticulture Updates
- UWEX – Wisconsin Native Plant Sources
- Wisconsin Department of Natural Resources
- Wisconsin Horticulture Calendar – Other events of interest
- University of Connecticut Plant Database
- Ohio State University Plant Dictionary
- USDA Plants Database
- Weed Science Society of America
- Wisconsin Phenological Society



