Michigan's New Restrictions: What Landscapers Should Know About Invasive Species

New Restrictions on Invasive Plants in Michigan: What You Need to Know

Recent developments in Michigan's environmental regulations have stirred conversations among landscape professionals, farmers, and the ecology community alike. On May 21, 2026, the Michigan Commission of Agriculture and Rural Development voted unanimously to enact restrictions on six noteworthy invasive plant species, aiming to safeguard local ecosystems. Among these are the infamous Japanese barberry and Callery pear, which conservation advocates hail as a much-needed victory for Michigan's biodiversity.

The effort to curb the spread of invasive flora is not just a surface-level task; it reflects ongoing concerns about the ecological integrity of Michigan’s landscapes. Conservation leaders like Carolyn Miller from the Wildflower Association expressed their elation at the decision. “We’re beyond happy,” she remarked, reflecting the sentiments of many who view this as a substantial step forward in protecting Michigan’s native habitats.

The Path to Regulation: Why Now?

The timing of this decision resonates with broader trends across the Great Lakes region, where neighboring states have already advanced similar measures. As Michigan seeks to catch up, the newly established regulations, effective January 1, 2028, encompass strict prohibitions on the sale and distribution of four terrestrial species—common buckthorn, glossy buckthorn, Japanese barberry, and Callery pear. Additionally, two aquatic species, water hyacinth and water lettuce, will be banned outright, as their uncontrolled proliferation poses significant threats to local waterways.

This decisive action is rooted in extensive Weed Risk Assessments conducted by the Michigan Department of Agriculture and Rural Development (MDARD). These assessments indicated that the selected species not only threaten Michigan’s agricultural landscape but also risk public health; for instance, Japanese barberry is known to attract Lyme disease-carrying ticks.

Implications for Farmers and Landscapers

While environmental advocates celebrate the progressive policy shift, landscapers and nurseries are raising eyebrows over the potential economic fallout. The Michigan Nursery & Landscape Association has voiced objections, citing the unfavorable impact this restriction could herald for businesses reliant on the sale of these plants. The Callery pear—an aesthetic favorite for its blossoms—has particular significance, balancing beauty and functionality in landscaping designs.

The MDARD acknowledges the legitimate concerns from the landscape industry. Its director, Tim Boring, emphasized the importance of collaboration and communication with nurseries to navigate the transition effectively. “We’re actively working with nurseries and landscapers across the state here to understand aspects from their perspective,” Boring stated, underlining a desire to strike a balance between economic considerations and ecological preservation.

With Change Comes Opportunity

This regulatory update offers farmers and landscapers a pivotal moment to reconsider cultivation strategies. As Michigan moves forward, embracing native plant species could bolster not only ecological health but also economic viability. For those engaged in agriculture—whether it’s flowering plants or essential crops—learning about native alternatives might create lucrative opportunities.

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