Microforests

Expanding Yonkers' tree canopy to build biodiversity and create a healthy community.

What Is a Microforest?

A microforest is a small area planted densely with species native to the local area. Trees grow rapidly in these conditions as they compete for sunlight. In just three years, a microforest will provide shade, reduce flooding, clean the air, provide habitat for animals, and a place for people to relax in nature.

Yonkers’ First Microforests

Groundwork Hudson Valley is building a healthier, more resilient city through green infrastructure projects that tackle flooding, extreme heat, and habitat loss. In April 2025, Groundwork Hudson Valley launched its Microforest Initiative with the planting of the first-ever microforest in Yonkers at the Barack Obama School for Social Justice. Together with students, school staff, volunteers, and community members, we created a living classroom and a powerful tool for climate resilience.

Microforests may be small in size, but they have an outsized impact. In just one year since the Obama school planting the microforest grew vertically 5 feet - an astounding rate for new plantings. The microforest is already blooming, hosting birds and other wildlife, and providing a beautiful space in the neighborhood.

In 2026 we partnered with two new Yonkers Public Schools to plant microforests in their schoolyards. Students, teachers and neighbors came out to dig, plant and water hundreds of new trees shrubs and groundcover.

What Does A Microforest Do?

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Trees cool the air! Not only do they provide shade, do something called evapotranspiriation which is a big word and a very scientific way to say that they "sweat” cool water through their leaves. These natural ACs cool the air by 10-20°. 

Trees capture stormwater! Their roots work underground to absorb rainwater and keep it out of our basements and sewers and off our roadways.

Our 50+ plant species will attract birds, butterflies, and other wildlife. The forest is like a buffet with something for everyone!

 

Microforest Projects at a Glance

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Meet the Plants

To replicate a natural forest ecosystem, the microforest has plants that grow to different heights. This ultimately creates four distinct layers: canopy trees, understory trees, shrubs, and herbaceous plants. Here are some featured plants from each forest layer.

CANOPY

The Chestnut Oak (Quercus montana) is a majestic tree native to eastern North America. It's known for its tall height, long life, and ability to thrive in rocky soil.

 

UNDERSTORY

The Serviceberry (Amelanchier canadensis) is a charming tree native to North America. Humans and wildlife love serviceberries for their edible blueberry-like berries in June!

SHRUB

The Black Elderberry (Sambucus canadensis) is a medium-sized shrub native to North America. It’s known for its berries and flowers, which have long been valued in food, drink, and traditional medicine.

HERBACEOUS

The Butterfly Milkweed (Asclepias tuberosa) is an herbaceous perennial native to North America. It’s known for its bright orange flowers that attract butterflies.

 

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Want the full list of plants?

Our Yonkers microforests are made up of carefully selected native trees, shrubs, and groundcovers that work together to cool the air, absorb stormwater, and provide habitat for birds and pollinators.

This initiative is made possible through the support and collaboration of:

HREP
BOSSJ
PTECH2

Get Involved

Want to stay updated on future microforests and other green infrastructure projects? Interested in bringing a microforest to your community? Email us at info@groundworkhv.org to learn more.