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Caragana arborescens, photographed by an iNaturalist contributor
(c) thaven, some rights reserved (CC BY-NC) · CC BY-NC
#303 most planted

Caragana arborescens

Siberian peashrub · also Siberian pea-tree, Caragana, Pea tree

Multi-trunkDeciduous
4,045
trees mapped
0.04%
of all named trees
16
cities
3.9 in
median trunk (10 cm, 4,034 measured)

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Caragana arborescens is a hardy, multi-stemmed deciduous shrub or small tree native to Siberia and parts of Central and East Asia. It produces bright yellow flowers in spring and is tolerant of harsh conditions including drought, wind, and various soils. While valued for shelterbelts and wildlife habitat, it can be invasive in some regions like the Midwestern United States.

Where it grows

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

  1. Calgary · Canada
    3,393—3.9 in
  2. Edmonton · Canada
    3815.4 yr2.4 in
  3. Lethbridge · Canada
    1416.8 yr3.1 in
  4. Toronto · Canada
    43—3.9 in
  5. Denver · United States
    39—3.0 in
  6. Burlington · United States
    106.8 yr2.0 in
  7. Boston · United States
    923 yr9.6 in
  8. Kingston · Canada
    7—3.9 in
  9. Montreal · Canada
    5—2.4 in
  10. Halifax · Canada
    4—3.1 in
  11. Mississauga · Canada
    4—2.6 in
  12. Paris · France
    3—2.5 in
  13. London · United Kingdom
    2—1.9 in
  14. Longueuil · Canada
    2—2.4 in
  15. Vancouver · Canada
    1—2.0 in
  16. Berlin · Germany
    1—11 in

Traits

Form
Multi-trunk
Foliage
Deciduous
Mature height
15–20 ft
Canopy spread
12–20 ft
Growth rate
Fast
Drought tolerance
High
Wildlife value
Moderate
Blooms
Mar, Apr, May

Trunk diameters across every city: median 3.9 in, mean 3.9 in, 90th percentile 3.9 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

  • Northeast China Plain deciduous forests
  • Southern Korea evergreen forests

Temperate Conifer Forests

  • Altai montane forest and forest steppe

Boreal Forests/Taiga

  • West Siberian taiga

Temperate Grasslands, Savannas & Shrublands

  • South Siberian forest steppe

Other Caragana in the catalogue

3 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).