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Aesculus x carnea, photographed by an iNaturalist contributor
(c) George Armistead/Hillstar Nature, some rights reserved (CC BY-NC), uploaded by George Armistead/Hillstar Nature · CC BY-NC
#125 most planted

Aesculus x carnea

Red horse-chestnut · also Flowering horse-chestnut

BroadleafDeciduous
16,615
trees mapped
0.16%
of all named trees
27
cities
6.3 in
median trunk (16 cm, 15,488 measured)
33 yr
median age (33% have a planting date)

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Aesculus x carnea, or red horse-chestnut, is an artificial hybrid tree with a round head, growing up to 50 feet tall and wide. It features showy red flowers in spring, followed by leathery fruit capsules in fall. This deciduous tree provides dense shade, thrives in moist, cool, well-drained soils, tolerates some drought, but can suffer from leaf scorch in hot, dry climates; its nuts are poisonous.

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
    4,223—7.5 in
  2. Berlin · Germany
    4,13842 yr11 in
  3. Toronto · Canada
    2,657—2.4 in
  4. London · United Kingdom
    2,166—5.3 in
  5. Washington, DC · United States
    6546.7 yr2.6 in
  6. Victoria · Canada
    624—17 in
  7. Amsterdam · Netherlands
    41729 yr9.8 in
  8. Denver · United States
    322—3.0 in
  9. Vancouver · Canada
    253—6.5 in
  10. New York City · United States
    233—5.0 in
  11. Mississauga · Canada
    216—2.0 in
  12. Tokyo · Japan
    175—7.0 in
  13. San Francisco · United States
    11417 yr5.0 in
  14. Montreal · Canada
    1134.9 yr2.0 in
  15. Longueuil · Canada
    75—1.2 in
  16. New Westminster · Canada
    5920 yr8.3 in
  17. Halifax · Canada
    54—27 in
  18. Boston · United States
    342.1 yr3.6 in
  19. Copenhagen · Denmark
    3317 yr—
  20. Ajax · Canada
    14—2.0 in
  21. Burlington · United States
    112.8 yr2.0 in
  22. Kelowna · Canada
    10—7.3 in
  23. Kingston · Canada
    9—4.3 in
  24. Los Angeles · United States
    835 yr7.5 in
  25. Buenos Aires · Argentina
    1—4.7 in
  26. Helsinki · Finland
    1—9.8 in
  27. Quebec City · Canada
    1——

Traits

Form
Broadleaf
Foliage
Deciduous
Mature height
30–50 ft
Canopy spread
30–50 ft
Drought tolerance
Moderate
Wildlife value
Moderate
Blooms
Mar, Apr, May

Trunk diameters across every city: median 6.3 in, mean 8.6 in, 90th percentile 19 in. Measured at breast height, as published by each inventory.

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).