Wisconsin Horticulture

Proper pruning controls tree size, directs growth, influences flowering, and maintains tree health and appearance. Learn how in this factsheet.

Amy Gibbs* and Brian Hudelson, UW-Madison Plant PathologyRevised:  4/26/2010Item number:  XHT1034 What are African violets?  African violets (Saintpaulia spp.) are popular flowering houseplants in the Gesneriad family (Gesneriaceae), native to Tanzania in East Africa.  Their compact forms make them ideal for use on tabletops, windowsills, and hanging baskets.  There are many varieties of African violets, […]

When it comes to digging in the garden or pruning trees and shrubs, having high quality tools that are cleaned, lubricated, sharpened and otherwise properly maintained, makes any outdoor job simpler and more efficient. Learn how to maintain your garden tools in this useful factsheet.

Holiday decorations containing boxwood foliage can be a source of disease for boxwoods in our landscapes. Learn more in this article.

Authors: Amy Gibbs* and Brian Hudelson, UW-Madison Plant Pathology Houseplants offer many benefits beyond beautifying a space. Not only can they improve the air quality in your home, they also can improve your mental well-being and reduce stress through basic care techniques. Caring for houseplants involves attention to light, temperature, water, and nutrients. Proper placement […]

W.L. Gojmerac Revised:  1/24/2012 Item number:  A2135 Approximately 1000 species of spiders are found in this country, living almost anywhere.  Learn about the dangers and problems and control of some spiders.

Fungus gnats (Family Sciaridae) are insects commonly associated with overwatered houseplants. They can become a nuisance when they are present in large numbers and fly around inside a home. In most situations, fungus gnats are a cosmetic problem. However, on occasion, fungus gnat larvae can cause plant damage.

Festive houseplants are common gifts in winter. In this video, learn how to keep a poinsettia, Christmas cactus, Norfolk Island Pine and other favorite gift plants thriving. 

This publication explores landscape planning: putting the plan on paper; selecting, placing, and planting trees and shrubs; and maintaining the home grounds.

Here are answers to the questions gardeners ask most often about growing vegetables. From asparagus to watercress, this guide covers over 50 vegetables plus other basic gardening topics.

Learn to recognize and prevent plant damage caused by deicing salts. Learn about alternatives to rock salt and which plants are salt-tolerant.

Starting your garden from seeds might be easier than you think. Check out this article to get practical tips on starting your plants from seeds.