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Greetings gardeners,

With December comes winter weather. Recent snowfall across Wisconsin has prompted heavy use of salt and sand to keep roads and sidewalks safe—but these materials can take a toll on landscape plants, among other things. This Winter Salting Guide demonstrates smarter deicing practices that maintain public safety while protecting local wildlife and freshwater resources. Keep reading for upcoming events and timely resources to stay connected to nature during winter.

Amaryllis bulbs are often used as holiday gifts; if properly cared for, they can bring joy and cheer for many years. 

Believe it or not, a live Christmas tree can be a more sustainable choice than an artificial one. When you bring a fresh tree into your home, you’ll want to make sure it lasts. Learn how to identify a healthy tree, determine which tree species suits your needs, and care for your tree once it’s indoors. Read more…

During winter, deicing salts are used extensively to melt ice and snow on roadways and sidewalks. However, most of these products pose significant hazards to the environment. Learn how to prevent plant damage, find environmentally friendly alternatives, and choose salt-tolerant landscape plants.  Read more…

Do you know the right way to water a holiday cactus? Or get a poinsettia to successfully rebloom? This recorded presentation covers practical tips and common pitfalls to keep your festive plants healthy and vibrant beyond the holidays. Gain a deeper understanding of Norfolk Island Pine, holiday cactus, and poinsettia. Watch now...

Course dates: Feb. 1–April 30, 2026 
100% Online | Self-Paced

Prepare yourself for next year’s growing season by learning the process of identifying plant problems. This course explains the basics of the plant diagnostic process in an easy-to-understand way. Gain a deeper understanding of insect and wildlife damage, plant diseases and disorders, management options and more.

A weekly column of horticulture education and activities for Wisconsin gardeners. Read the latest articles from this past month.

Why is there so much asparagus growing along the side of the road in Wisconsin? | Wisconsin Life | Featuring Mark Renz

Invasive tree-killing pest ‘highly likely’ to show up in Wisconsin, expert says | Wisconsin Public Radio | Featuring PJ Liesch

▶ Listen: Why We Should be Thankful for Bugs | Wisconsin Public Radio | Featuring PJ Liesch

More Extension Horticulture in the news →

Hardy fountain grass species make excellent specimen plants, providing winter interest in an otherwise stark landscape. 

UW-Madison Division of Extension Horticulture Program

Find articles, resources, educational events and more at hort.extension.wisc.edu

The University of Wisconsin–Madison Division of Extension provides equal opportunities in employment 
and programming in compliance with state and federal law.