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Cornus kousa, photographed by an iNaturalist contributor
(c) Σ64, some rights reserved (CC BY) · CC BY
#270 most planted

Cornus kousa

Kousa · also Kousa dogwood, Chinese dogwood, Korean dogwood

Deciduous
5,441
trees mapped
0.05%
of all named trees
18
cities
3.8 in
median trunk (10 cm, 5,015 measured)

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Cornus kousa is a small deciduous tree native to East Asia, known for its attractive branching structure, showy spring flowers, and strong fall color. It produces fruit that attracts birds. As an ornamental, it requires loose, fertile soil and moderate moisture, tolerating full sun in suitable conditions.

Where it grows

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

  1. Tokyo · Japan
    2,208—3.6 in
  2. Vancouver · Canada
    1,213—4.0 in
  3. Washington, DC · United States
    5135.7 yr2.0 in
  4. Boston · United States
    477—8.8 in
  5. New York City · United States
    387—4.0 in
  6. New Westminster · Canada
    30819 yr4.1 in
  7. London · United Kingdom
    130—0.5 in
  8. Victoria · Canada
    62—1.6 in
  9. Halifax · Canada
    55—1.6 in
  10. Amsterdam · Netherlands
    4513 yr5.9 in
  11. Copenhagen · Denmark
    117.8 yr—
  12. Paris · France
    10—2.3 in
  13. Denver · United States
    10—3.0 in
  14. Burlington · United States
    6—3.0 in
  15. Kingston · Canada
    2—3.3 in
  16. Helsinki · Finland
    2—2.0 in
  17. Mississauga · Canada
    1—2.4 in
  18. Kelowna · Canada
    1—2.8 in

Traits

Foliage
Deciduous
Mature height
20–39 ft
Canopy spread
15–20 ft
Wildlife value
High
Blooms
Mar, Apr, May

Trunk diameters across every city: median 3.8 in, mean 4.8 in, 90th percentile 8.8 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 Broadleaf & Mixed Forests

  • Eastern Himalayan broadleaf forests
  • Central China Loess Plateau mixed forests
  • Central Korean deciduous forests
  • Northeast China Plain deciduous forests
  • Southern Korea evergreen forests

Tropical & Subtropical Moist Broadleaf Forests

  • South Taiwan monsoon rain forests

Other Cornus in the catalogue

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

Counts exclude rows with no species recorded. Descriptions and traits are compiled from Wikipedia, Plants of the World Online, GBIF and SelecTree and may contain errors; photos are from iNaturalist under the licence shown. Get the underlying data.

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