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Tree Bark

Winter time is somewhat of a downtime for deciduous trees.  After a growing season’s worth of beautiful foliage, culminating in the wonderful fall display of color, woody plants enter the long, cold season of dormancy that is part of their annual life.  For many of us, this is not a time...
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Christmas Tree Selection

Everyone has their own idea of the perfect Christmas tree.  While I am not a person that picks the proverbial “Charlie Brown Tree”, I have certainly felt pity on the less attractive trees on the lot in years past.  Whatever your taste, a fresh cut Christmas tree adds a certain bit of...
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Fall Color

Illinois forests are dominated by a mixture of eastern deciduous forest trees and many of our urban areas mirror this forest composition creating a wonderful palette of fall colors each year as the growing season concludes and tree leaves senesce, giving way to winter dormancy.  As a tree-...
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Larch

Last weekend’s fall weather has certainly set leaf drop into motion for the year.  I noticed some of the early droppers stating to thin their canopy as many of the walnut around our property are already yellowing and loosing leaves.  Cottonwoods are half bare, dropping more leaves each...
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a black walnut tree

Black Walnut

Anyone with a mature black walnut (Juglans nigra) on their property is likely aware that fruits are ripe now, and the baseball-sized, green bombs are beginning to fall with each slight gust of wind or, at times, seemingly at random. This native tree is prevalent throughout central...
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Plants that inhibit other plants

Some plants don't seem to play well with others. In particular, a few plants release chemicals to try to keep other plants from growing too near. This botanical war tactic is known as allelopathy. Black walnuts (Juglans nigra) are one of the best-known allelopathic plants. Black...
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Sycamores

Our native sycamore tree (Platanus occidentalis) is known for its extraordinary exfoliating bark which peels off to expose the beautiful creamy white and greenish colors beneath creating a camouflage-like appearance.  This summer many area sycamores are shedding bark at alarming rates...
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Flowering Crabapples

In the past week or so, crabapple trees have stolen the spring flower show among our blooming landscape plants.  These beautiful trees produce abundant flowers for up to 4 weeks each spring, with one of the best, most showy displays of any ornamental tree species.  They pick up where the...
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Saucer magnolia is currently in full bloom in our area with an abundance of white to pinkish, showy flowers

Magnolia Pollination

Although spring was late coming this year, it has finally sprung, and with it both star magnolia (Magnolia stellata) and saucer magnolia (Magnolia x soulangeana) are in bloom. These beautiful ornamental trees, native to Asia, provide about a...
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Winter Damage to Evergreens

Evergreen plants, which retain their leaves (or needles) throughout the seasons, are some of the showstoppers of our landscapes in winter.  They provide some much needed color in a world devoid of the green, chlorophyll-laden foliage we have throughout the growing season.  Although...
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College of Agricultural, Consumer & Environmental Sciences Illinois Extension

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1301 W. Gregory Dr.

Urbana, IL 61801

Email: extension@illinois.edu

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