The Nature Conservancy Plants 2.5 Million Trees in Minnesota in 2025

MINNEAPOLIS, Minn. – The Nature Conservancy (TNC) announced it planted 2.5 million trees in northern Minnesota this year in partnership with the U.S. Forest Service, Minnesota Department of Natural Resources and three county land departments. This is a record number for the organization, and the second consecutive year the program has planted more than 2 million tree seedlings.

The tree seedlings were planted on public lands—across 5,810 acres of national forest, state forest, state park and county-managed forest lands—and covered six counties, including Cook, Lake, Saint Louis, Itasca, Cass and Carlton County.

The planting areas included 1.8 miles along scenic Highway 61 and 41 miles of stream, river and lakeshore that connect to Lake Superior. It also included 1,740 acres of moose habitat enhancement, completed in partnership with the Ruffed Grouse Society and Minnesota Moose Habitat Collaborative—whose tribal representation is critical in maintaining habitat for this species of cultural importance to Indigenous communities.

“Our Northwoods are an essential part of our state,” said Ann Mulholland, TNC's director in Minnesota, North Dakota and South Dakota. “They absorb and store carbon from the atmosphere, filter our water, support our economy, offer wildlife habitat and give us places to hike, hunt and relax. We’re planting trees to improve the diversity and resilience of our Northwoods for generations to come.”

Warming temperatures, pressure from development, and pests like spruce budworm are rapidly changing Minnesota’s forests. As the forests become more fragmented and less diverse, they grow increasingly vulnerable to disease and wildfire. In response to this spring’s devastating wildfires, the team also planted 5,100 trees on 11 acres that were burned in the Camp House wildfire.

TNC uses science-based methods to carefully select and plant trees that will thrive in future climate conditions and enhance the health of the forest. This year, the team planted 14 different native and climate-hardy tree species, including white pine, white spruce, red pine, jack pine, red oak and yellow birch.

“Diversity is the superpower of our forests. Like a diverse stock portfolio, we want a diverse mix of tree species to ensure that enough survive different stresses like drought, pests and warmer temperatures,” said Jim Manolis, TNC's director of forest strategy and stewardship in Minnesota.

Tree planting at this scale requires an enormous amount of planning, collaboration and effort. The team orders tree seedlings two years in advance and coordinates with agencies and partners to ensure the trees are planted on time during the six-week spring planting season.

“Strong partnerships with the DNR, Forest Service and local counties are the reason we have been able to plant more than 13 million trees across northern Minnesota since 2005,” said Manolis.

This accomplishment was only possible with the hard work of 65 seasonal guest workers who specialize in tree planting and tending. Non-immigrant guest workers from Latin America plant more than 85% of the trees planted in the U.S. each year on temporary visas. An important pillar of TNC’s program is ensuring these highly skilled workers are well compensated, cared for and appreciated while helping TNC achieve its forestry goals.

Learn more about TNC’s work to protect Minnesota’s forests at nature.org/mnforests.