Habit (mature) · Solipsist / Wikimedia Commons · CC BY-SA 2.0
Limited coverage
Castaño de Indias
Aesculus hippocastanum
Un árbol de sombra caducifolio grande e imponente de las montañas de los Balcanes del sureste de Europa, plantado desde hace mucho en parques, avenidas y grandes céspedes de clima templado-frío por su espectacular floración primaveral y su densa sombra estival. En mayo se cubre de panículas erguidas, en forma de candelabro, de flores blancas manchadas de amarillo y luego de rosa, alzadas sobre hojas grandes, ásperas y palmaticompuestas de cinco a siete folíolos. Hacia el otoño deja caer cápsulas verdes espinosas que se abren para liberar semillas brillantes de color caoba: los «conkers» de la tradición escolar británica. Es majestuoso pero exigente y estrictamente ornamental: todas sus partes, y en especial esas tentadoras semillas brillantes, son tóxicas para personas y ganado, y el árbol sufre el tizón foliar y el minador de la hoja del castaño de Indias, que pardean el follaje a finales del verano. No lo confunda con el castaño dulce comestible y no emparentado (Castanea sativa): esa coincidencia de nombres es una causa real y peligrosa de intoxicaciones.
Review: Source-backed
Climate fit: narrow (38/100)
Focal point
Structure
Light
Full sun / Part shade
Water
Moderate water
Mature size
600-900" tall · 480" apart
Hardy in zones
4a-7b
very cold to cold winters
Native in Illinois
No
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Estrictamente ornamental y nunca un árbol comestible: todas las partes de Aesculus hippocastanum —hojas, flores, corteza y especialmente las semillas brillantes de color marrón (conkers)— contienen esculina (aesculina) y saponinas (escina) y son tóxicas para personas y ganado.
Cold hardiness
Future
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
USDA
Published baseline for this location from 1991-2020.
Source: USDA Plant Hardiness Zone Map 2023 (1991-2020 climatology) via ArcGIS FeatureServer
Well-suited
2050
Zone 7a
Plotwright
Projected zone for this same location in 2050 (2041-2070) using SSP3-7.0 (regional rivalry).
Well-suited
In plain terms: This location is in Zone 6b today. Its hardiness profile is cold winters, and coldest nights are typically around -3°F. By 2050, the projected hardiness zone is Zone 7a based on SSP3-7.0 (regional rivalry). That is a +0.5-zone shift from Zone 6b to Zone 7a by 2050.
✓
Well-suited today and still thriving in 2050.
Heat tolerance
Future
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.
Loading AHS heat-zone data for this location...
Where this plant fits
Suitable across 34 ecoregions — 26 climate-resilient through 2070 · 8 suited today. Best matches first.
Appalachian mixed mesophytic forests
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Appalachian-Blue Ridge forests
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Arizona Mountains forests
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Blue Mountains forests
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Canadian Aspen forests and parklands
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Central Tallgrass prairie
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Central-Southern Cascades Forests
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Colorado Rockies forests
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Cross-Timbers savanna-woodland
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Eastern Canadian Forest-Boreal transition
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Sources & citations
Cite this page
For lesson plans, articles, or research that uses this page. To cite a single upstream fact instead, use its specific source listed below.
Plotwright. (2026, May 17). Castaño de Indias (Aesculus hippocastanum). Retrieved 2026, June 13, from https://plotwright.garden/plants/aesculus-hippocastanum
Sources for every fact
Every fact on this page traces to a source. 18 fields cited — 18 source-backed.
NC State Extension Gardener Plant Toolbox
University extension service
Backs 17 fields
Identity
Summary
Plant type
Light
Moisture
Hardiness
Heat zone
Size
Spacing
Habit
Design roles
Seasonal interest
Growth stages
Lifecycle
Regional guidance
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Designer notes
Community photos
The photos above are our reviewed reference set, curated for accuracy.