07/10/2026
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Is the horse already out of the barn? Many invasives were promoted by state governments as cover for wildlife, such as Russian/Autumn Olive, or given to hunters to plant on their property: honeysuckle, or as erosion control, Crown Vetch, Kudzu.
I am glad, though that native plants, in the "Prairie State" are no longer viewed as weeds.
If we can now keep our county officials from clear cutting heritage oak trees in our forest preserves, as the Forest Preserve District of Will County has done in Crete Township (and replaced the soil with crushed stone and topping it with asphalt), then maybe we can make some progress in species recovery.
Forty-four plants just became illegal, and your garden center is about to look very different.
Indiana made forty-four invasive plants illegal to sell, gift, barter, transport, distribute, or introduce into the landscape. This is not a recommendation. This is not a voluntary nursery pledge. This is state law with real enforcement teeth, targeting species that have been destroying Indiana's ecosystems for decades while sitting innocently on retail shelves. The Indiana Department of Natural Resources identified these plants through scientific assessment, and the ban covers every pathway that allows invasives to spread. If you cannot sell it, gift it, or even move it, the plant is effectively dead to the horticulture trade.
The brutal mechanics of why this matters are staggering. Many of these forty-four species were introduced as ornamental landscape plants because they grew fast, looked pretty, and required minimal care. Japanese barberry, burning bush, Callery pear, and wintercreeper were staples of the suburban Indiana yard. But they escaped cultivation and invaded forests, prairies, and wetlands. Japanese barberry forms dense thickets that alter soil chemistry and increase tick populations carrying Lyme disease. Burning bush displaces native understory plants in Indiana's hardwood forests. Wintercreeper smothers the ground layer and climbs trees, killing them by blocking sunlight. Each plant was sold as a garden solution while functioning as an ecological weapon.
The old system rewarded nurseries for selling ecological destruction because the costs were externalized. A homeowner bought burning bush for fall color, never knowing it would seed into the nearby nature preserve and outcompete native wildflowers. The nursery made the sale, the homeowner got the aesthetic, and the ecosystem paid the price. Indiana's law breaks that cycle by removing the profit motive from the supply chain entirely.
The mechanism is comprehensive. The ban covers all forty-four species across every distribution channel. Nurseries must clear their stock. Landscapers must find alternatives. And homeowners who already have these plants are not forced to remove them, but they cannot legally share or move them.
The second-order effect is a market transformation. Native plant nurseries in Indiana are expanding to fill the gap. Landscapers are learning to design with Indiana natives like serviceberry, wild hydrangea, and ninebark. And the forests are getting a reprieve from the constant pressure of new invasions.
Invasives banned. Natives legal. Landscapes clean.
