Duluth Planted Hybrid Trees to Offset Ash Loss
The city and researchers deployed a new patented poplar variety to replace canopy lost to the emerald ash borer.
Updated on Oct. 15, 2026 in Botany
Live Poll
Do you support prioritizing fast-growing trees over long-lived species to restore your local canopy?
City officials and researchers from the University of Minnesota have planted 25 Innova hybrid poplar trees near 59th Avenue West. The initiative aims to restore canopy density lost to the invasive emerald ash borer.
Why it matters
The Innova hybrid was selected for its ability to reach full size significantly faster than traditional species. This deployment offers a potential model for urban forestry management facing rapid tree mortality.
The Innova tree is the first patented hybrid poplar in the U.S., engineered with a root structure that expands rapidly to accelerate growth. It was installed in a 15-foot wide boulevard to test its urban growth trajectory.
The players
Natural Resources Research Institute
A research organization affiliated with the University of Minnesota that focuses on natural resource development and ecological sustainability.
City of Duluth
The local municipal government managing regional infrastructure and public urban forestry initiatives.
The details
The Natural Resources Research Institute developed the Innova hybrid by crossbreeding poplar species to optimize rapid vertical and lateral growth. This specialized root expansion allows the tree to reach maturity in a shorter duration than native deciduous species. The planting site near 59th Avenue West serves as an controlled environment to evaluate these physiological traits against local urban stressors.
Timeline
October 14, 2026: The report regarding the planting initiative was published.
The Tech Race
This deployment transitions the Innova hybrid poplar from research-stage breeding into an active municipal urban forestry project. It follows a strategy to replace emerald ash borer-devastated landscapes with high-growth alternatives that outpace traditional oak and maple replacement timelines.
Residents in the vicinity of 59th Avenue West will see these 25 trees integrated into the existing boulevard landscaping immediately. The results of this multi-year monitoring will determine if similar hybrid species are used to replace trees throughout the rest of the city.
The takeaway
The use of patented, rapid-growth hybrid trees provides a potential technical shortcut for restoring urban canopy decimated by pests. Monitor the upcoming multi-year longitudinal study to see if the Innova's growth speed justifies a wider rollout over traditional maple or oak species.
What happens next
City officials and University of Minnesota researchers will conduct a multi-year monitoring period to evaluate the trees' growth and adaptation to the Duluth environment.
Further reading
Learn more about local vegetation management and ecological research in the Botany section.
Source note: This article includes information reported by WDIO.
Live Poll
Do you support prioritizing fast-growing trees over long-lived species to restore your local canopy?
