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Aesculus, photographed by an iNaturalist contributor
(c) charolais, some rights reserved (CC BY-NC) · CC BY-NC
#433 most planted

Aesculus

Indian horse chestnut

BroadleafDeciduous
2,310
trees mapped
0.02%
of all named trees
21
cities
7.5 in
median trunk (19 cm, 1,870 measured)
7.4 yr
median age (27% have a planting date)

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Indian Horse Chestnut is a large deciduous tree, growing 20-30m tall, with distinctive peeling grey-green bark and showy pinkish-white flowers in July. Native to the Himalayas, it thrives in moist, shady deciduous forests and is a valuable resource for pollinators. Despite its toxic seeds, it is widely cultivated as an ornamental tree in temperate regions, particularly valued for its resistance to leaf-mining moths.

Where it grows

Trees in each city's inventory, with the share of that city's named trees this species accounts for.

  1. Paris · France
    657—15 in
  2. London · United Kingdom
    487—5.1 in
  3. Edmonton · Canada
    3204.1 yr2.4 in
  4. Berlin · Germany
    16440 yr11 in
  5. Copenhagen · Denmark
    15027 yr—
  6. Montreal · Canada
    148—9.1 in
  7. Calgary · Canada
    67—1.6 in
  8. Kelowna · Canada
    57—19 in
  9. Amsterdam · Netherlands
    445.8 yr5.9 in
  10. Quebec City · Canada
    43—13 in
  11. Melbourne · Australia
    427.8 yr11 in
  12. New York City · United States
    39—11 in
  13. Denver · United States
    22—3.0 in
  14. Ajax · Canada
    22—2.0 in
  15. Ottawa · Canada
    21——
  16. Boston · United States
    9—26 in
  17. Helsinki · Finland
    8—9.8 in
  18. Winnipeg · Canada
    5—2.4 in
  19. Victoria · Canada
    2—7.3 in
  20. Vancouver · Canada
    2—3.0 in
  21. New Westminster · Canada
    1—14 in

Traits

Form
Broadleaf
Foliage
Deciduous
Mature height
65.6–98.4 ft
Wildlife value
High
Blooms
Jul

Trunk diameters across every city: median 7.5 in, mean 9.8 in, 90th percentile 22 in. Measured at breast height, as published by each inventory.

Native range

Terrestrial ecoregions where this species is native. Trees in the dataset mostly stand well outside it.

Temperate Conifer Forests

  • Western Himalayan subalpine conifer forests
  • East Afghan montane conifer forests

Temperate Broadleaf & Mixed Forests

  • Western Himalayan broadleaf forests

Other Aesculus in the catalogue

15 of the top 2,000 species are in this genus.

Interested in talking trees? arborary.world@gmail.comTree data © the respective municipal publishers and © OpenStreetMap contributors (ODbL).