Chinkapin oak

Appalachian-Blue Ridge forests

Arizona Mountains forests

Atlantic coastal pine barrens

Blue Mountains forests

Central-Southern Cascades Forests

Colorado Rockies forests

Cross-Timbers savanna-woodland

Appalachian mixed mesophytic forests

What it needs

Conditions

Light

Full sun

Water

Low water

Spacing

45 ft

Habit

Medium to large deciduous oak, 40 to 60 feet tall and less frequently to 80, with an open globular crown that is characteristically broader than the tree is tall - 50 to 70 feet of spread over a 40-to-60-foot trunk. The crown is open and high-branching rather than dense.

Care tips

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Specify it wherever the soil is limey. This is the answer to "I want an oak but my pH is 7.8", and there are very few others - pin oak and red oak on that ground go chlorotic and stay that way.

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Give it width, not height. At 50 to 70 feet across over a 40-to-60-foot trunk it is broader than tall, and it is routinely planted as though it were a narrow street tree.

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Do not plant it for acorns you intend to see. First bearing can take 30 years; plant it for the tree, and treat the mast as something for the next owner.

Lifecycle

Planting

Plant in spring in full sun, in average, medium-moisture, well-drained soil. Missouri Botanical Garden notes that although it occurs naturally on dry rocky alkaline sites, it performs better in cultivation given a moist fertile loam - so the alkaline tolerance is a capability to exploit rather than a preference to satisfy. Allow 50 to 70 feet of width; this tree is broader than it is tall.

Transplanting

Move it young and in spring. Like the other dry-site white oaks it establishes a deep root system early, and small stock outperforms large specimens.

Early growth

Moderate. Prune for a single leader in the first decade before the crown starts to spread; once it broadens, the structural decisions are made. It responds well to the compacted, restricted root runs of a street planting, which is unusual for an oak of this size.

Maturity

Long-lived and low-maintenance. Subject to the usual oak diseases and pests in principle, but Missouri Botanical Garden characterises it as an untroubled tree in practice. Oak wilt is the exception - prune in late winter only, never in spring in an affected region.

Propagation

From acorns, and as a white-group oak they germinate immediately on falling with no dormancy - sow them the day they drop rather than storing them. Be realistic about waiting for seed from your own tree: first bearing can take 30 years.

Native range

Native

Naturalized

Native across 32 US states; naturalized in 1 US state.

Worldwide native range.

AHS heat range

3-10

Native ecoregions

Naturally belongs in 21 ecoregions - its native range crosses a state or province each one spans (not necessarily this exact habitat).

Appalachian-Blue Ridge forests

Arizona Mountains forests

Atlantic coastal pine barrens

Central Tallgrass prairie

Chihuahuan desert

Colorado Rockies forests

Cross-Timbers savanna-woodland

Eastern Great Lakes lowland forests

Edwards Plateau savanna

A dense, conical-to-narrow-pyramidal evergreen tree native to eastern and central North America, prized as a screening and foundation conifer. Flat, fan-like sprays of scale-like, aromatic yellow-green foliage clothe the tree from the ground up, and red-brown bark exfoliates on mature trunks. Wild trees can reach 40 to 60 feet but cultivated plants typically stay near 20 to 30 feet; small urn-shaped cones and dense evergreen cover make it valuable food and shelter for birds.

Climate notes

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Native across the eastern and central United States and into southern Ontario, with the range reaching south-west into New Mexico and down into north-eastern and Gulf Mexico - a wider and more south-westerly distribution than most eastern oaks. POWO returned HTTP 403 for this species, so the WGSRPD range was taken from the World Checklist of Vascular Plants rows served through GBIF, the same Kew dataset, verified in this batch against a species POWO did answer for.

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District of Columbia appears in the Wildflower Center occurrence list but not in the Kew native range, so it is carried in the ESTABLISHED layer rather than the native one.

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The garden zone is 5 to 7, which is noticeably narrower than the species range implies - the Mexican and New Mexican populations are montane and are not a signal that this tree suits a hot low-elevation southern garden.

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Alkaline soil is the whole point. Chinkapin oak grows naturally on limestone and dry rocky calcareous ground and is one of very few large oaks that will not go chlorotic on high-pH soil. On a limestone site, or on the rubble-and-concrete-influenced soil of an urban planting pit, it succeeds where pin oak and red oak reliably fail.

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Missouri Botanical Garden rates its drought tolerance as relatively good and describes it as highly adaptive to urban site conditions, while also noting it is uncommonly cultivated. Those two facts together are the argument for specifying it more often than it is specified.

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Plotwright assigns an editorial AHS heat range of 3-10, reasoned from the cited GBIF/WCVP range and Missouri Botanical Garden cultivation notes rather than from the USDA zones above. Southern Ontario supports a cool but not far-northern floor, and the eastern and central lowland range supports ordinary hot summers. The ceiling deliberately does not treat Mexican or New Mexican montane occurrences as evidence for the hottest lowland conditions - the record already warns against exactly that inference. This is a conservative Plotwright interpretation, not a copied AHS rating.

Similar plants

Browse lateral options with similar roles, light needs, size, or native-range overlap; these are not filtered for a better climate fit.

Thuja occidentalis

American arborvitae

A medium-to-large native shade tree of central and eastern North America, reaching 50 to 80 feet with an ovate-rounded crown and large, asymmetric heart-shaped leaves. In June it carries pale-yellow, intensely fragrant flowers on pendulous cymes - each cluster hung from a distinctive strap-like leafy bract - that ripen into pea-sized nutlets. The fragrant June bloom is a premier nectar source: Missouri Botanical Garden lists it as attracting bees and butterflies, and the Lady Bird Johnson Wildflower Center flags it as having special value to both native and honey bees.

The only native U.S. holly with both spiny green leaves and bright red berries - an upright, pyramidal, broadleaf evergreen tree that slowly matures to 15 to 30 feet in cultivation (to 50 feet in the wild). Thick, leathery, deep green leaves bear spiny marginal teeth, and pollinated female trees carry showy red-to-orange drupes that ripen in fall and persist through winter as bird food. This is the classic "Christmas holly" of wreaths and decorations.

A small-to-medium understory tree of dry, rocky eastern-North-American woods, named for its drooping clusters of papery, sac-like seed pods that resemble the fruit of hops. The birch-like, sharply-serrated leaves turn an undistinguished yellow in fall, and reddish-brown male catkins persist on the bare branches through winter. Also called ironwood for its extremely hard, dense wood; tough, low-maintenance, and drought-tolerant once established.

A tough, medium-sized native tree of the eastern and midwestern United States, grown as much for its showy edible orange fruit as for its distinctive thick, dark gray bark broken into rectangular blocks. Small urn-shaped white-to-greenish-yellow flowers open in May and June, and the sweet fruit ripens after frost. Largely dioecious - a female tree needs a male pollinizer nearby to set fruit - and notably drought- and walnut-tolerant once established.

Full sun / Part shade

A small native deciduous tree (or thicket-forming, suckering shrub) of eastern and central North America, grown for clouds of fragrant white 5-petaled flowers that open in March before the leaves and for the edible red plums that follow in early summer. It forms a broad, spreading crown with attractive dark reddish-brown twigs that sometimes carry thorny lateral branchlets. A documented larval host for swallowtails and other butterflies, with flowers of special value to native, bumble, and honey bees.