Welcome to the University of Wisconsin-Madison’s Extension Horticulture Program, a leading source of horticultural knowledge renowned for its commitment to delivering research-based information and guidance to the people of Wisconsin. We provide evidence-based horticulture management education, resources, and decision-making tools to home gardeners and commercial horticulture practitioners so Wisconsinites can keep their plants healthy while protecting the environment.

A Tradition of Research-Driven Horticulture Education

The UW-Madison’s Extension Horticulture Program stands at the forefront of horticulture research and education by leveraging the extensive expertise of our dedicated faculty, researchers, and staff.

Need personalized advice based on the latest research? If you have a home gardening question, please submit your question using our Ask a Gardening Question form that connects you directly with our team of experts!

Let’s Stay in Touch

Join our horticulture network to receive updates on the latest gardening research, educational opportunities, and upcoming workshops.

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Our Scope: Focused on Safe and Legal Gardening Practices

As you spend time on the website, you may notice we are silent on some topics. Due to various legal, health, and medical reasons, we do not include content on the following topics.

  • Using plants for medicinal or homeopathic purposes
  • Food nutrition, preparation, preservation and recipes
  • Foraging for mushrooms and plants
  • Identification and growing of mushrooms for human health or edibility
  • Diagnosing risk trees
  • Cannabis and marijuana
Monarch butterfly on milkweed plant
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