Photo by Melody

PlantFiles: Adam's Laburnum, Broom Laburnum
Laburnocytisus 'Adamii'

Family: Papilionaceae (pa-pil-ee-uh-NAY-see-ee) (Info)
Genus: Laburnocytisus (la-burn-oh-SIT-ih-sus) (Info)
Cultivar: Adamii

One vendor has this plant for sale.

6 members have or want this plant for trade.


20-30 ft. (6-9 m)

15-20 ft. (4.7-6 m)
20-30 ft. (6-9 m)

USDA Zone 5a: to -28.8 C (-20 F)
USDA Zone 5b: to -26.1 C (-15 F)
USDA Zone 6a: to -23.3 C (-10 F)
USDA Zone 6b: to -20.5 C (-5 F)
USDA Zone 7a: to -17.7 C (0 F)
USDA Zone 7b: to -14.9 C (5 F)
USDA Zone 8a: to -12.2 C (10 F)
USDA Zone 8b: to -9.4 C (15 F)
USDA Zone 9a: to -6.6 C (20 F)
USDA Zone 9b: to -3.8 C (25 F)

Sun Exposure:
Full Sun

Seed is poisonous if ingested

Bloom Color:
Bright Yellow

Bloom Time:
Late Spring/Early Summer


Other details:
This plant is attractive to bees, butterflies and/or birds
Flowers are fragrant

Soil pH requirements:
Unknown - Tell us

Patent Information:
Unknown - Tell us

Propagation Methods:
By grafting

Seed Collecting:
N/A: plant does not set seed, flowers are sterile, or plants will not come true from seed

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2 positives
No neutrals
No negatives

Gardeners' Notes:

Positive ineedacupoftea On Apr 11, 2006, ineedacupoftea from Denver, CO wrote:

This plant is usually (if not always) grafted onto Laburnum rootstock and should therefore be treated as such.

Leaves are just the trilobate Laburnum-leaf style.
The odd mix of Gold, Pink, and intermediate flowers makes it either extremely appealing or too bizarre for the average viewer. The Laburnum tissue tends to be the strongest and can dominate a branch, which should be removed in favor of the wild chimeral branches.

The orignial chimera occured under the grafting knife of the French Jean Louis Adam (after which the plant is named) in 1825.

Positive philomel On Sep 24, 2004, philomel from Castelnau RB Pyrenes
France (Zone 8a) wrote:

This is a graft hybrid between Laburnum anagyroides and Cytisus purpureus. The flowers appear as three types on the same plant - yellow laburnum flowers, purplish cytisus flowers and yellow and lilac/pink laburnum-like flowers.
It is very hardy and easy going, thriving in anything but water-logged conditions.


This plant has been said to grow in the following regions:

Mill City, Oregon

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