Invasive Species
Green spaces and backyards in Glenview and throughout the area are being invaded by plant species that are not native to Illinois and can cause environmental damage.
These invasive species crowd out many native wildflowers and gain an ecological edge that impacts natural landscapes, including woodlands, savannas, prairies and wetlands.
The Village of Glenview Environment and Natural Resources Commission and the Glenview Park District schedule restoration work days throughout the year, during which volunteers work to remove invasive, non-native plants along the North Branch of the Chicago River, in The Grove Natural Historic Landmark and Kent Fuller Air Station Prairie. But these removal efforts can't remain effective if the invasive plants are allowed to thrive on private properties or continue to be planted by gardeners.
Landowners and residents can help thwart invasive plants by recognizing them, eliminating them from the outset and not planting them or encouraging their growth.
Here are just a few of the invasive plants that can be easily found in the Glenview area:
Buckthorn
This European species forms thickets that are almost impenetrable. It can be recognized by its fine-toothed, opposite leaves and dark, berry-like fruits.
- Watch this video for more information.
The Village of Glenview offers a 50/50 cost-share program - up to $600 - for qualifying buckthorn removal projects. Visit the Buckthorn Removal Incentive Program page for more information.
Canada Thistle
A serious invader in fields and pastures, Canada thistle is difficult to eradicate. A small patch can soon turn into a large colony if left unchecked. This robust plant can reach heights of five feet tall, and the stem and leaves are covered with prickly spines.
- Watch this video for more information.
Garlic Mustard
This noxious plant spreads through woodlands and primarily shaded urban areas through its seeds. Small white, four-petal flowers bloom in spring, and when the leaf is crushed or the stem of the plant is broken, a strong, onion-like smell is evident. Garlic mustard takes over yards, parks, nature preserves and other natural habitats.
Phragmites
Also known as a common reed, this wetland plant grass can group up to 15 feet in height and create tall, dense stands that crowd out native plants.
- Watch this video for more information.
Purple Loosestrife
Long a prized perennial because of its pinkish-purple flower, purple loosestrife grows in dense stands and seeds are easily spread. Because it re-sprouts from root fragments, it is aggressive and can't be easily removed by hand. It can overtake wetlands and stream beds.
- Watch this video for more information.
Teasel
This plant grows a basal rosette, then sends up a tall flowering stalk. A single teasel can produce over 2,000 seeds that can remain viable for at least two years. The tap root may sometimes be longer than two feet.
- Watch this video for more information.
Emerald Ash Borer
The Emerald Ash Borer (EAB) has been found throughout the Village since 2008. The EAB is a small, 1/2-inch long and 1/8-wide beetle native to Asia. Usually only visible from May to July, the average adult can easily fit on a penny. For the most current and up-to-date information check out FAQ's on the EAB, visit the Illinois Department of Agriculture's EAB Webpage, or if you suspect that your tree is infested by the insect, contact Public Works at (847) 724-1700.
More Resources
Buckthorn Removal Resources
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