Chinkapin oak is native to the Midwest, where it is often found as a specimen planting or as a grouping of tree for parks and large areas. Chinkapin oaks are found on dry, limestone outcrops in the wild and one of the best for alkaine soils. Its glossy, coarsely-toothed leaves are yellow-green and small compared to most oaks. Young oaks retain a pyramidal to oval habit with a pale gray, scaly ridged central trunk. As trees age, the crown becomes more rounded.
- Deciduous (seasonally loses leaves)
- Chicago area
- North America
- Zone 5
- Zone 6
- Zone 7
- Full sun (6 hrs direct light daily)
- Partial sun (4-6 hrs light daily)
- Dry sites
- Alkaline soil
- Clay soil
- Alkaline soil
- Moist, well-drained soil
- Large tree (more than 40 feet)
- Mid winter
- Mid summer
- Mid fall
Size & Form
40 to 50 feet high and wide
A straight trunked, columnar to spreading tree
Tree & Plant Care
Best grown in rich, deep soils but often found in the wild on dry, limestone outcrops in low slopes, and wooded hillsides
One of the best oaks for alkaline soils
Prune oaks in the dormant season to avoid attracting beetles that may carry oak wilt.
Disease, pests, and problems
Anthracnose, oak wilt, two-lined chestnut borer
Native geographic location and habitat
Native to eastern and central United States
Attracts birds, pollinators, or wildlife
Nuts are heavily used by birds deer and squirrels.
Bark color and texture
Mature bark is ashy-gray with flaky, scaly ridges and plates. The scales are separated by shallow fissures.
Leaf or needle arrangement, size, shape, and texture
Alternate, variable in shape and size, coarsly toothed with each tooth ending in a point.
Leaves are 4 to 6 inches long, dark green and smooth above, often pale and slightly hair beneath.
Fall color is a yellow to orange-brown to brown
Flower arrangement, shape, and size
Borne separately on same tree in April and May. Male flowers are clusters of hanging catkins. Female flowers are inconspicuous tiny spikes found in the axils of new leaves.
Fruit, cone, nut, and seed descriptions
Small, solitary, 1/2 inch long acorn with a thin, bowl-shaped warty cap covering half of the nut. Ripe fruit is dark brown to black.