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Red Horsechestnut

Aesculus × carnea

Also listed as Aesculus × rubicunda, Aesculus × spectabilis

Also known as Flowering Horse-chestnut

tree☀️ full sun💧💧 moderate water❄ Hardy: Zone 4a – Zone 7b

Climate Match for your location

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A hybrid ornamental tree valued for its showy red to pink flower panicles appearing in late spring, smaller and more manageable than the common horsechestnut. The cultivar 'Briotii' produces particularly deep red flowers and is one of the most popular selections.

Why grow it

Red horsechestnut offers earlier and more abundant flowering than its parent species (Aesculus hippocastanum), with flowers appearing in late spring in shades of red to pink rather than white or pale pink. The hybrid is notably more compact, making it practical for medium-sized landscapes where the common horsechestnut would outgrow available space. It retains the architectural branching structure and summer shade production of horsechestnut species while delivering greater ornamental impact during bloom.

Watch out for

This tree benefits from consistent moisture during establishment and extended dry periods, particularly in regions with hot summers. Like other horsechestnut species, it is susceptible to leaf blotch and canker diseases in areas with high humidity or poor air circulation, so site selection and pruning for airflow can reduce problems. Seeds and seedpods are typical of the genus and may require management if dropped fruit litter is a concern in manicured settings.

Overview

Form
Rounded
Growth Rate
moderate
Size
30–40′ tall × 25–35′ wide
Dormancy
deciduous
Family
Sapindaceae
WindbreakHedgerow

Native Range

Hybrid origin (European cross)

Seasonality

Bloom Season

J
F
M
A
M
J
J
A
S
O
N
D

Season of Interest

Spring

Notable Cultivars

'Briotii' is the most widely planted cultivar, distinguished by its deeper crimson-red flowers and more compact growth habit compared to the straight hybrid.

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Companion Planting

Plants well with