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This young red maple could benefit from corrective pruning to establish a central leader that is free of competition from adjacent limbs.

Shade Tree Pruning

Wintertime offers few activities out in the garden, other than filling bird feeders and carefully watching dormant plants for any sign of awakening as spring nears.  However, winter dormancy is the ideal time to prune woody plants.  With trees and shrubs inactive in their winter slumber,...
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River birch is a native tree with excellent winter appeal from its beautiful, exfoliating bark.

River Birch

The snow-blanketed wintertime landscape often lacks the beauty we can recall from other times of the year when plants were in bloom or filled with wonderful green foliage.  It leaves both humans and wildlife searching for plant life that retains interest either in the form of ornamental beauty...
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diagram of branch bark ridge and branch bark collar

Tree pruning tips for 2021

Like a scene from an old western: with a pair of sterilized pruners, and her boots, horticulturists Kelly Allsup walks up to the newly planted English White oak hybrid. Her sole intent of increasing the life of an urban tree. She walks around...
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loppers cutting a tree branch

Proper Pruning of Trees

Trees in the landscape can be easily overlooked for the all the benefits they provide us whether that be casting shade on a warm, summer day, housing our feathered, birds friends, or adding a touch of color to our lawns. According to the Council of Tree and Landscape Appraisers, trees on a property...
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Gymnosperms, like this Colorado blue spruce, are a group of nonflowering plants that emerged several hundred million years before flowering plants (angiosperms) entered the evolutionary history of the plant kingdom.

Angiosperms vs Gymnosperms

The plant kingdom has not always had the diversity we know today.  It has taken hundreds of millions of years of evolution to bring about the diverse, complex group of flowering plants known as angiosperms.  And for many millions of years prior to the emergence of angiosperms, the plant...
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The frosty accumulation of ice crystals on these spruce needles resulted from the wafting spray of an adjacent (untreated) roadway and serves to illustrate how salt spray can accumulate on plant parts.

How winter salt can damage landscape plants

Deicing salts are essential to winter travel in Illinois and provide necessary safety in a landscape setting by melting dangerous ice on precarious steps, sidewalks, entryways, and other areas of frequent foot traffic. However, winter damage from salt can be a major problem in some landscapes...
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Ice accumulation yesterday resulted in damage to many trees and shrubs in our area.

Ice Accumulation on Trees and Shrubs

Freezing rain is a regular part of winter weather patterns in central Illinois, resulting in occasional ice storms that can damage property, take out utilities and wreak havoc on tree canopies.  By meteorological definition, an ice storm occurs when ice accumulation is greater than 0.25 inches...
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College of Agricultural, Consumer & Environmental Sciences Illinois Extension

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Urbana, IL 61801

Email: extension@illinois.edu

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