The land comprising New York City holds approximately 5.2 million trees and 168 different tree species, as of 2020. The New York City government, alongside an assortment of environmental organizations, actively work to plant and maintain the trees. As of 2020, New York City held 44,509 acres of urban tree canopy with 24% of its land covered in trees.

History of trees in New York City Trees have grown continuously on the mainland and islands that now comprise New York City since the end of the Pleistocene epoch. Trees have inhabited the lands in or around what is now New York City for over 300 million years, far before the existence of humanity. The first human settlement in the NYC area is dated as early as 9,000 years ago, this marked the beginning of human's permanently altering the old-growth forest ecosystem.

Humanity's impact of the trees in New York City greatly accelerated with European colonization of the Americas as the new settlers brought with them advanced metal tools and tree processing technologies paired with an appetite for lumber for domestic use and for export to others of the Thirteen Colonies and to the Old World. While the Native American population lived off and with the Northeastern coastal forests relatively symbiotically, the new European colonists, with their higher population density, sedentary housing needs, and agriculture techniques, diminished the need to harvest wild fruits from trees. The New World found itself rapidly deforested, New York City included.

Native American use of trees

The Lenape peoples who inhabited the greater NYC area directly prior to European colonization relied on trees for food, shelter, tool materials, fuel, and medicine. The typical Lenape house, called a longhouse, relied on the bending of the trunks taken from small trees to create a series of arches to serve as the frame. The Lenape used prickly-ash (Zanthoxylum americanum) as medicine for toothaches because chewing on the leaves or bark creates a tingling, or numbing effect in the mouth.

In 1624, at the time of the founding of New Amsterdam, huge stands of oak, hickory, and chestnut trees grew throughout the island of Manhattan. The very name "Manhattan" is recorded as originally referring to a stand of hickory trees with wood suitable for bow-making, located at the southern tip of the island. At this time, the area now known as Times Square was a Red Maple swamp. The Lenape called Governors Island: “Pagganck,” which means “nut island,” named after the areas abundance of hickory nut trees.

Native Americans made use of fire in ecosystems here as elsewhere, and some of the early Dutch colonists copied this practice.

The original forests and ecosystems of 1609 Manhattan have been reconstructed by the Wildlife Conservation Society's Mannahatta Project.

Colonial use of trees

Fruit trees imported during the Dutch period included apple, cherry, peach and pear planted in prominent orchards.

At the corner of Cherry Street and Franklin Square, was the "Cherry Garden" planted by David Provost Sr., and later operated by the brewer Richard Sackett as "Sackett's Orchard" with a beer garden and bowling green. George Washington later lived at 1 Cherry Street, the location being notable as the nation's first presidential residence. Remnants of the orchard survived into the 1870s, when the last of the trees and Washington's home at 1 Cherry Street, were razed to build the Brooklyn Bridge.

Lumber in Manhattan during the Dutch period was largely processed at the Sawkill saw mill, worked by a settlement of enslaved Africans.

Contemporary use of trees In New York City, the harvesting of trees for lumber and the maintaining of orchards for fruit declined as forests and farmland was bought and developed to house the growing population of the city. Parsons Nurseries, a late effort at commercial tree cultivation for ornamental imports, was active in Queens in the late 19th century. Since the late 19th-early 20th century, the functions of the trees planted in the urban landscape and parks of New York City is to provide shade, help manage rainwater runoff, and clean the air by absorbing some of the carbon dioxide produced by New York City's 18+ million residents.

In an effort to maintain and improve its urban forest, New York City runs tree planting efforts through the Parks Department. As of 2020, New York City Department of Parks and Recreation is the steward of most of the 2.5+ million trees growing within New York City. The New York City Tree Map is an interactive map by the parks department that catalogues more than 850,000 trees in the city.

The NYC Department of Parks observes Earth Day and Arbor Day.

Street trees as a metaphor for urban life were popularized in the 1943 novel A Tree Grows in Brooklyn.

The tallest and oldest tree in New York City is a tulip poplar growing in Queens named the Queens Giant.

Between 2010 and 2017, the city's tree canopy increased by 1.7%.The study The dataset illustrates these changes.

Old-growth forests Tracts of trees that have been characterized as old-growth forest include the Thain Family Forest at the New York Botanical Garden (largest in the city), as well as parts of Hunter Island in Pelham Bay Park, Midwood Forest in Prospect Park, Northwest Woods in Van Cortlandt Park, Shorakapok Preserve in Inwood Hill Park, Alley Pond Park and Forest Park. A number of the old growth remnants in New York City are preserved as Forever Wild preserves.

Notable trees In 1985, a community nominations process led to the selection of sixty-five "Great Trees", and in the 21st century some of these were cloned through cuttings. In October 2024, NYC Parks released another list of 120 great trees, its first such list since 1985.

Notable living trees

+ Living trees Name Type Location Borough Notes Queens Giant Tulip poplar Alley Pond Park Queens A 134+ foot tall tulip poplar tree, believed to be the tallest and oldest tree in the city Clove Lakes Colossus Tulip poplar Clove Lakes Park Staten Island A 119+ foot tall tulip poplar tree with 21+ foot circumference Hangman's Elm English elm Washington Square Park Manhattan Planted in the 1790s. Believed to be the oldest tree in Manhattan. It was rumored to be where traitors were hanged during the American Revolution, but this was determined to be unfounded. The only recorded execution in this area was of Rose Butler, in 1820, who was hanged from a gallows in the city's potter's field about 500 feet from the elm. Magnolia grandiflora at 677 Lafayette Avenue Magnolia grandiflora Bedford–Stuyvesant Brooklyn A rare example of a flourishing laurel magnolia growing far north in New York, brought as a seedling from North Carolina and planted around 1885 by William Lemken. A New York City designated landmark Survivor Tree Callery pear National September 11 Memorial Manhattan A callery pear tree that survived the September 11, 2001 terror attacks at the World Trade Center. Taken off-site and nursed back to health by the NYC Parks department, the Survivor Tree was returned and replanted at the memorial site in 2010. Camperdown Elm (Marianne Moore) Camperdown elm Prospect Park Brooklyn Planted in Prospect Park in 1872, a descendant of a unique elm species from the Earl of Camperdown's Scottish estate. Among the first planted in the United States. James Madison Tree Red oak Madison Square Park Manhattan A red oak grown on James Madison's estate in Virginia and transplanted in 1936 at Madison Square Park to celebrate the 100th anniversary of Madison Avenue. The Dinosaur English elm Washington Heights Manhattan English elm tree, planted on the estate of the Morris Jumel Mansion in the early 18th century. George Washington allegedly stood under the tree on September 21, 1776, to watch the fire set by American rebels that burnt much of New York City. Boss Tweed Ginkgo Ginkgo Crocheron Park Queens A 150+ year old ginkgo tree, alleged witness to Boss Tweed’s escape from the United States. Hare Krishna Tree American elm Tompkins Square Park Manhattan An American elm where the "Hare Krishna" mantra was chanted publicly in 1966 for the first time outside of India, marking the birth of the Hare Krishna movement in the West. Woodside Beech Tree Beech Woodside Queens A large beech tree estimated to be between 150 and 200 years old.

Notable deceased trees