Tree highlight: sugar maple

Tree highlight: sugar maple

Sugar maple

Acer saccharum (Family Sapindaceae)

sugar maple trees

Sugar maple leaves turn brilliant shades of yellow, orange, and red in the fall

The basics

Sugar maple is a slow-growing, long-lived deciduous tree native to eastern and central North America, from southern Canada through the northeast and Midwest U.S., south to Georgia. Sugar maple, also known as ‘rock maple’ or ‘hard maple,’ thrives in rich, well-drained soils and is a dominant species in northern hardwood forests. The leaves are typically 5 lobed (sometimes 3) with smooth margins, 3 to 6 inches long and wide, and turn brilliant shades of yellow, orange, and red in the fall. In early spring, the tree produces small greenish flowers before leaves appear, followed by paired winged seeds (samaras). The green samaras are curved and resemble a horseshoe and approximately 1 inch in length, in contrast to the smaller, straighter, red samaras of red maple (A. rubrum). On younger trees the bark is smooth but becomes shaggy as the tree ages. The vibrant fall foliage of sugar maple makes it a cherished symbol of autumn.

Did you know?

    • Sugar maple is the primary source of maple syrup, with sap containing 2–4% sugar.

    • It is tapped in early spring and 30 to 50 gallons of sap are needed for a single gallon of maple syrup.

    • Sugar maple wood is dense and durable, and is commonly used for flooring, furniture, and musical instruments.

    • The sugar maple leaf is featured on the Canadian flag, and the tree is the state tree of Vermont, New York, Wisconsin, and West Virginia.

sugar maple syrup tapping

Sugar maple sap is the primary source of maple syrup

sugar maple samara

Samaras are green, curved and resemble a horseshoe 

Wildlife

    • Sugar maple provides nesting and shelter for birds such as chickadees, owls, and woodpeckers.

    • The foliage supports caterpillars that provide food for insectivorous birds.

    • Sugar maple seeds are eaten by songbirds, chipmunks and squirrels.

    • Early spring flowers are a nectar source for bees and other pollinators.

Uses

    • Sugar maple is widely planted for its shade potential, stunning fall color, and ecological value.

    • The deep roots stabilize soil, and its dense canopy makes it an ideal shade tree.

    • Indigenous peoples harvested its sap to make syrup and sugar slabs, and they incorporated it in many of their meals and as a sweetener for bitter medicines.

sugar maple leaves

Leaves are typically 5 lobed (sometimes 3) with smooth margins

Benefits

Over a 20-year period, a healthy sugar maple with a diameter of 20 inches will offset 6,681 car miles worth of CO2, absorb enough stormwater to fill 753 bathtubs, and remove an amount of pollution from the air – in gaseous and particulate form – equivalent in weight to 57 smartphones! Learn more at: https://mytree.itreetools.org/

Sugar maple Tree of the Week video

By University of Kentucky Forestry and Natural Resources Extension

Click to watch

Contact us: ufi@uky.edu

Contact Information

125 T.P. Cooper Building Lexington, KY 40546-0073

ufi@uky.edu