Laburnum
Golden chain tree · also Golden rain tree, Common laburnum, Scotch laburnum
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Laburnum species are small deciduous trees native to the mountains of central and southern Europe. They are known for their showy, pendulous clusters of yellow flowers. All parts of the tree, especially the seeds, are highly poisonous if ingested, which is an important consideration for urban planting. These trees are tolerant of poor soils and can fix nitrogen.
Where it grows
Trees in each city's inventory, with the share of that city's named trees this species accounts for.
- 2420.02%—2.0 in
- 190.01%12 yr7.6 in
- 150.03%42 yr—
- 140.01%—5.3 in
- 140.02%—3.9 in
- 90.01%—6.0 in
- 90.00%24 yr5.9 in
- 40.00%—6.6 in
- 30.00%—5.9 in
- 20.00%—4.4 in
- 20.01%—21 in
- 10.00%——
Traits
- Foliage
- Deciduous
- Mature height
- 20–40 ft
- Canopy spread
- 15–25 ft
- Growth rate
- Moderate
- Water needs
- Moderate
- Wildlife value
- High
- Blooms
- Mar, Apr, May, Jun, Jul, Aug
Trunk diameters across every city: median 2.5 in, mean 3.8 in, 90th percentile 7.9 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
- Appenine deciduous montane forests
- Balkan mixed forests
- Dinaric Mountains mixed forests
Temperate Conifer Forests
- Alps conifer and mixed forests
Mediterranean Forests, Woodlands & Scrub
- Northeast Spain and Southern France Mediterranean forests
Other Laburnum in the catalogue
4 of the top 2,000 species are in this genus.
