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Marronnier rouge
Aesculus x carnea
Un hybride de jardin (Aesculus hippocastanum x A. pavia) cultivé pour ses panicules dressées et voyantes de fleurs rose rouge à rose au milieu du printemps, sur un feuillage ample, vert foncé et palmé composé. Il forme un arbre d'ombrage ou de sujet de taille moyenne de 30-40 pieds, à la couronne dense, de pyramidale à arrondie. Son principal atout par rapport au marronnier d'Inde commun est la santé : le marronnier rouge est bien moins sujet à la tache foliaire et au dessèchement des feuilles qui brunissent et défigurent A. hippocastanum en fin d'été, de sorte que la couronne tient mieux tout au long de la saison. Les fleurs attirent les abeilles et, avec leurs étroits fleurons tubulaires rose rouge, les colibris. Une mise en garde de poids s'applique : comme tous les Aesculus, les graines brunes et lisses (marrons) et les autres parties sont toxiques en cas d'ingestion, il faut donc le placer avec soin là où il y a des enfants ou des animaux. C'est un hybride à faible production de graines, ni envahissant ni adventice.
Climate fit: moderate (58/100)
Focal point
Structure
Pollinator
Light
Full sun / Part shade
Water
Consistent moisture
Mature size
360-480" tall · 300" apart
Hardy in zones
4a-9b
very cold to frosty winters
Native in Illinois
No
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Les abeilles butinent les panicules de printemps pour le nectar et le pollen.
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 41 ecoregions — 40 climate-resilient through 2070 · 1 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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Atlantic coastal pine barrens
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Blue Mountains forests
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Canadian Aspen forests and parklands
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Central Pacific Northwest coastal forests
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Central Tallgrass prairie
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Central-Southern Cascades Forests
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Chilean Matorral
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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). Marronnier rouge (Aesculus x carnea). Retrieved 2026, June 14, from https://plotwright.garden/plants/aesculus-x-carnea
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
Success tips
Designer notes