Leaves of Illinois with Kids: A Nature Explorer Guide (+ Free Map)

Illinois may be known for its prairies, but its forests put on a beautiful autumn show — the river bluffs and woodlands blaze with the scarlet of maples, the gold of aspens and hickories, and the deep red of oaks. Beyond the color, Illinois's trees are full of surprises for kids: the mighty white oak — the state tree — whose acorns feed countless animals, sassafras leaves that smell like root beer, papery birch bark once used to make canoes, and sugar maples tapped for syrup. From Starved Rock's canyons to the bluffs of the great rivers, learning to read the leaves turns any Illinois walk into a discovery. 

This guide maps the best spots to find Illinois's most fascinating leaves and trees with kids. Give your young explorer a mission before you go with Nature Explorer Club's Leaves of Illinois Activity Book to track every leaf your family discovers.

Best Spots for Leaf and Tree Spotting in Illinois

We mapped the best tree-spotting locations in Illinois so you can plan your adventure before you go.

1. Starved Rock State Park — Illinois's most famous park, where wooded canyons and bluffs along the Illinois River blaze with fall color reflected in the water.
2. Matthiessen State Park — A park of canyons, streams, and forest next to Starved Rock, beautiful with autumn color along its trails.
3. Garden of the Gods, Shawnee National Forest — Dramatic rock formations in the wild hills of southern Illinois, surrounded by hardwood forest spectacular in fall.
4. Great River Road, Alton to Grafton — A scenic drive along the Mississippi River beneath towering bluffs, glorious with fall color and eagle-watching.
5. Pere Marquette State Park — Illinois's largest state park, at the meeting of the Illinois and Mississippi Rivers, with forested bluffs and stunning autumn views.
6. Morton Arboretum, Lisle — A world-class arboretum with thousands of labeled trees from around the world and brilliant fall color — perfect for families learning leaves.
7. Chicago Botanic Garden, Glencoe — A beautiful garden with a rich collection of trees and seasonal color along easy paths.
8. Galena Historic Town — A picturesque town in the hilly, unglaciated northwest corner of the state, surrounded by forested hills brilliant in fall.
9. Anderson Japanese Gardens, Rockford — A serene garden famous for its Japanese maples that blaze red and gold in autumn.
10. Lincoln Park, North Pond, Chicago — A natural area within the city's largest park, with native trees and fall color right by the lake.

Make the Adventure Real The Leaves of Illinois Activity Book turns your trip into a hands-on mission for ages 7–12 — with a species tracker, fun facts, drawing pages, games, and puzzles. Shop the Book Get the Full IL Set

Family Tips for Leaf and Tree Spotting in Illinois

• Visit Starved Rock or the river bluffs in October. The canyons of Starved Rock and the bluffs of the Great River Road are spectacular for fall color, usually peaking in mid-to-late October.
• Find a white oak and its acorns. Illinois's state tree produces acorns that feed deer, squirrels, turkeys, and more — a great "who eats this?" lesson for kids.
• Crush a sassafras leaf and smell it. It smells like root beer — and a single tree can have three leaf shapes (oval, mitten, and three-lobed), a fun hunt for kids.
• Explore the Morton Arboretum. Its labeled trees from around the world make it easy and fun for kids to compare leaves and learn species.

Frequently Asked Questions: Leaves of Illinois with Kids

What is the state tree of Illinois?

The white oak is Illinois's state tree — a mighty, long-lived oak that can live for hundreds of years and grow a wide, spreading crown. Its leaves have gentle, rounded lobes, and it produces acorns that are an important food for deer, squirrels, turkeys, and many other animals. Illinois schoolchildren helped choose the native oak as the state tree.

Where can families see fall color in Illinois?

Starved Rock and Matthiessen State Parks are famous for fall color in their canyons, and the Great River Road bluffs along the Mississippi are spectacular. The Morton Arboretum and Anderson Japanese Gardens offer brilliant, accessible displays, usually peaking in mid-to-late October.

Which Illinois tree smells like root beer?

The sassafras tree's leaves smell like root beer when crushed — in fact, sassafras was once used to flavor root beer. It's also remarkable because a single tree can grow three different leaf shapes: oval, two-lobed (like a mitten), and three-lobed. The leaves turn brilliant orange, yellow, and red in fall.

Why is the white oak important?

The white oak is one of the most valuable trees for wildlife in Illinois because its acorns feed so many animals, and its strong wood has been used for centuries for furniture, barrels, and building. A single old white oak can support hundreds of species of insects, birds, and mammals, making it a keystone of the forest.

What's an easy way for kids to start identifying trees?

Start with leaf shape — is it a simple single leaf (like maple or oak), a compound leaf made of leaflets (like hickory or ash), or a needle (like white pine)? Then look at bark and any nuts or cones. Distinctive Illinois trees like the round-lobed white oak, the root-beer-scented sassafras, the papery-barked birch, and the syrup-making sugar maple make great first species to learn.

Turn Your Illinois Adventure Into a Real Leaf Exploration

Give your kids a mission before you go. Our Leaves of Illinois Activity Book is a nature journal for ages 7 to 12 — with a leaf tracker, fun facts about each species, leaf category guides, drawing pages, games, and puzzles.

Or get all four Illinois nature books together — the Illinois Nature Explorer Series bundles the Birds, Butterflies, Leaves, and Wildflowers of Illinois activity books.

Also exploring Illinois's nature? Read our family guides to Birds of Illinois with Kids, Butterflies of Illinois with Kids, and Wildflowers of Illinois with Kids.