Ohio buckeye
Aesculus glabra
Ohio buckeye (Aesculus glabra) is a small-to-medium native tree of rich streambanks and bottomlands across the central and eastern US. Its large palmate leaves emerge very early, followed in spring by upright clusters of yellow-green flowers that attract hummingbirds; the smooth brown buckeyes mature later in their husks. It makes a useful native shade tree where the soil stays moist and drains well, typically 20 to 40 feet tall in a garden. The tradeoff is unusually clear: the dense summer canopy makes grass difficult beneath it, and a hot, droughty site invites leaf blotch, scorch, and pest problems. Put it where that early spring display, summer shade, and early autumn leaf drop are all part of the composition rather than surprises.
Native: 25 US states
Climate fit: broad (79/100)
Focal point
Pollinator
Structure
Light
Full sun / Part shade
Water
Consistent moisture
Mature size
20-40 ft tall · 25 ft apart
Hardy in zones
3a-7b
brutally cold to cold winters
Native in Illinois
Yes
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Native across 25 US states and Canadian provinces - a wide-ranging part of North America's plant communities.
Cold hardiness
These values are location-based: this location's current hardiness is the baseline, and the 2050 value is a projected future climate for this same location.
Now
Zone 6b
Plotwright
USDA Zone 6b
-5°F to 0°F
Well-suited
Zone 7a
Plotwright
0°F to 5°F
Well-suited
In plain terms: This location has cold winters. Its winters are projected to keep warming through 2050.
✓
Well-suited today and still thriving in 2050.
Heat tolerance
Heat tolerance values are location-based too: heat days today are observed at this site, and the 2050 value projects this same location under a future climate.
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Where this plant fits
Suitable across 35 ecoregions - 27 climate-resilient through 2070 · 5 suited today · 3 newly possible by 2070. Best matches first.
Similar plants
Browse lateral options with similar roles, light needs, size, or native-range overlap; these are not filtered for a better climate fit.
Educator packet
Plant packet
Ohio buckeye educator packet
Ohio buckeye (Aesculus glabra) is a small-to-medium native tree of rich streambanks and bottomlands across the central and eastern US. Its large palmate leaves emerge very early, followed in spring by upright clusters of yellow-green flowers that attract hummingbirds; the smooth brown buckeyes mature later in their husks. It makes a useful native shade tree where the soil stays moist and drains well, typically 20 to 40 feet tall in a garden. The tradeoff is unusually clear: the dense summer canopy makes grass difficult beneath it, and a hot, droughty site invites leaf blotch, scorch, and pest problems. Put it where that early spring display, summer shade, and early autumn leaf drop are all part of the composition rather than surprises.
Scientific name
Aesculus glabra
Plant type
tree
Hardiness
3a-7b
Light
full-sun, part-shade
Moisture
consistent
Spacing
300 inches
Classroom prompts
- Which plant traits are observations, and which are care recommendations?
- How would this plant fit change if the garden location moved warmer, colder, wetter, or drier?
- Which source-backed facts would you cite in a lesson handout?
Use the Sources & citations section below for page citation styles and the field-level source list.
Sources & citations
Cite this page
For lesson plans, articles, or research that uses this page. Use the source cards below to explore the references that informed this record.
Plotwright. (2026, May 17). Ohio buckeye (Aesculus glabra). Retrieved 2026, September 9, from https://plotwright.com/plants/aesculus-glabra
Sources used for this record
This record is compiled from the sources below.
Lady Bird Johnson Wildflower Center Native Plant Database
Botanical research database





