Water gardeners—keep your eyes open this season for invasive plants that may be lurking at your neighborhood garden store. In recent years, Illinois and Indiana DNR have both added nearly 30 new species to their lists of banned aquatic plants, but some may still be available for sale. 

If you spot one of these invaders, be sure to tell the store manager. Some species can be hard to identify and larger stores may not even know these plants are on their shipment list. That’s exactly what was happening at a Petco in Carbondale, IL, where Karla Gage found Brazilian elodea—aka Egeria densa—while browsing with her family.  

“I notified the department manager that this was listed as an injurious species in Illinois, and I sent a follow up email to the store manager,” said Karla, coordinator of the River to River Cooperative Weed Management Area, which brings together federal, state, local, and private partners to tackle invasive plants in southern Illinois. “I received a call from the corporate contact, who stated that Petco stores in Illinois would no longer receive or be able to order Brazilian elodea. Previously, Carbondale stock had been on “auto-replenish,” so the stores never actually ordered Brazilian elodea. Current stock is being disposed of responsibly.”

 

“Thanks to Admin Code 805 and the quick response of Petco,” she added, “the risk of an introduction of Brazilian elodea into natural systems has been reduced.” 

The Illinois and Indiana rules also make it illegal to gift, barter, exchange, loan, or transport the any listed species. Recent additions to the list—27 plant species in Illinois and 28 in Indiana—were chosen based on the results of a risk assessment tool developed in Indiana by the Aquatic Plant Working Group. The tool evaluates species based on factors like ability to thrive in the Great Lakes and difficulty to control. IISG’s aquatic invasive species (AIS) team organized and facilitated the group, which included representatives from the aquatic plant industry, aquarium and water garden hobbyists, state agencies, academia, and non-governmental organizations. 

V
isit our AIS page for more information about invasive plants and animals on the market and what water gardeners and aquarium hobbyists can do to prevent their spread. 

***Photo courtesy of Graves Lovell, Alabama Department of Conservation and Natural Resources, Bugwood.org. 

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🌊 Boost Your Great Lakes Literacy in 3 Easy Ways!1️⃣ Read the Great Lakes Literacy Principles2️⃣ Join a Sea Grant professional learning event3️⃣ Explore Great Lakes educational resources📬 The summer edition of the Center for Great Lakes Literacy newsletter supports all three—and more!Perfect for educators, environmental leaders, and curious minds.👉 Subscribe today and dive into a world of Great Lakes learning: https://conta.cc/3ZtrIKc or the link in bio.
Don’t miss this opportunity to enhance your teaching skills and connect with fellow educators! Join us for a two-day, water-themed workshop on August 8-9, 2025, at the Dunes Learning Center located in Indiana Dunes National Park. Open to all 5-12th grade formal and non-formal educators, this event offers a chance to explore the natural world, network, and receive exclusive access to the newest Project WET Educator’s Guidebook: Water in Earth Systems.The registration deadline is July 18th.Learn more at the link in bio.
📣 Aquaculture Teacher Workshop – June 2025🗓️ June 26–27, 2025📍 Purdue University – John S. Wright Forestry Center🕐 Starts June 26 at 1 PM | Ends June 27 at 4:30 PM🌿 Optional Pre-Tour: June 26, 10:30–11:30 AMExplore Aquaculture & Aquaponics in Action!Perfect for science teachers looking to bring hands-on, real-world STEM into the classroom.What’s Included:✔️ Facility tours at Purdue & nearby✔️ Build-your-own aquaponics system (FREE to take home!)✔️ Hands-on labs & classroom integration ideas✔️ $250 stipend for travel or classroom supplies✔️ Open to formal and non-formal educatorsLearn how aquaculture is a powerful tool for engaging students in science, sustainability, and food systems!Spots are limited – register early!Learn more at the link in bio.
IISG is hiring a part-time pollution prevention outreach assistant. IISG’s pollution prevention team addresses water quality issues affecting the Great Lakes coasts and the inland waters of Illinois and Indiana, specifically focusing on contaminants of emerging concern like pharmaceuticals, microplastics and marine debris, and PFAS. This outreach assistant will support the pollution prevention team by developing outreach activities and engaging with communities to share that knowledge.Learn more and apply at the link in bio.
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