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Scotch Broom

Cytisus (SY-tiss-us PRAY-koks)

Family: Fabaceae Unknown Shrub (3-15 ft)

Cytisus x praecox or Scotch Broom is a hybrid cross between Cytisus multiforus x Cytisus x oromediterraneus . and Cytisus purgans . It was developed around 1867 at the nursery of Messrs. Wheeler of Warminster in Wiltshire, England. It is a dense, arching, many-stemmed, flowering shrub in the bean family (Fabaceae) that may be either deciduous or evergreen, depending upon the climate. This shrub grows 3 to 5 feet tall, 4 to 6 feet wide, with clusters of showy, yellow, pea-like flowers in the late spring. This shrub has small, sparse, green, simple leaves that are present briefly, and grayish-green stems that provide winter interest. Thrives in full sun and tolerates most any type of well-drained soil. It is tolerant of dry soils, poor soils, salt, and drought. Annual pruning after flowering is recommended. Best propagated by cuttings in the late summer. Lots of very showy yellow flowers in mid-spring will add a pop of color to your lawn or garden. It may be used as a screen, hedge, or border planting. Mass plantings along a bank or slope would be eye-catching. Quick ID Hints: Stems are green and ridged, but not twisted Yellow, fragrant, pea-like flowers are present along stems in mid-spring Leaves are mostly simple This plant is a twiggy, mounded shrub with arching stems Insects, Diseases, and Other Plant Problems: No significant insect pests or diseases.

Source: NC State Extension Gardener Plant Toolbox ↗ NC State Extension Gardener Plant Toolbox, 55 attributes.

How it fits the guild

Guild layer 3 - Shrub (3-15 ft) Optimal soil pH Acid (<6.0); Neutral (6.0-8.0)
See companions & conflicts ↓

Companions & Conflicts

Curated pairwise relationships between this plant and others in the library — who feeds whom, who competes, who confuses the pests. Green reads as a good pairing, red as one to avoid.

No curated interactions recorded for this species yet.

Also noted by NC State

Related species the NC State Plant Toolbox flags for this plant — look-alikes to tell apart, and plants that play a similar role in a planting. Ones we carry in the library are linked.

Full plant profile

Growing Conditions
Plant type
Shrub
Life cycle
Woody
USDA zones
6a, 6b, 7a, 7b, 8a, 8b, 9a, 9b
Light
Full sun (6 or more hours of direct sunlight a day)
Soil texture
Loam (Silt); Sand
Soil pH
Acid (<6.0); Neutral (6.0-8.0)
Soil drainage
Good Drainage | Occasionally Dry | Very Dry
Available space
3 feet-6 feet
NC region
Coastal; Mountains; Piedmont
Mature size
Height: 4 ft. 0 in. - 6 ft. 0 in. | Width: 5 ft. 0 in. - 6 ft. 0 in.
Growth rate
Rapid
Maintenance
Low
Canopy layer
3 - Shrub (3-15 ft)
Form & Appearance
Habit / form
Dense; Erect; Multi-stemmed; Rounded
Texture
Medium
Foliage
Broadleaf Evergreen; Deciduous; Semi-evergreen
Leaf color
Gray/Silver; Green
Leaf type
Simple
Leaf arrangement
Alternate
Leaf shape
Lanceolate; Linear; Spatulate
Leaf margin
Entire
Leaf size
< 1 inch long, < 1 inch wide
Hairs present
Yes
Leaf detail
The leaves are alternate, mostly simple, lanceolate to linear-spatulate with entire margins and silky pubescent, measuring 0.25 to 0.75 inches.
Flower color
Gold/Yellow
Flower value
Fragrant; Good Cut; Showy
Flower shape
Lipped
Flower size
< 1 inch
Flower detail
Fragrant pale yellow pea-like flowers appear in profusion in the spring, measuring 0.5 inches to 0.75 inches.
Bloom time
Spring
Fruit color
Gold/Yellow; White
Fruit type
Legume
Fruit size
1-3 inches long
Fruit detail
The plant produces legume seed pods. The fruit is hairy along the margins, measuring 1 to 2 inches in length. Legumes can be either yellow or white.
Stem color
Gray/Silver; Green
Stem detail
The stems are slender, grayish-green, and ridged. Older stems are brownish.
Wildlife & Ecology
Native status
Unknown
Wildlife value
Attracts birds and butterflies.
Attracts
Butterflies; Songbirds
Play value
Attractive Flowers; Colorful; Screening
Food & Medicine
Fruit type
Legume
Landscape Use
Landscape location
Coastal; Slope/Bank
Landscape theme
Cottage Garden; Cutting Garden; Rock Garden
Design feature
Border; Hedge; Mass Planting; Screen/Privacy
Garden tags
#hillsides #showy flowers #yellow flowers #drought tolerant #slopes #spring flowers #mass planting #fast growing #fantz #pest resistant #salt tolerant #spring interest #dry soils tolerant #shrub border #poor soil tolerant #deciduous shrub #bird friendly #full sun tolerant #screen #hedge #butterfly friendly
Problems & Resistance
Resistant to
Drought; Dry Soil; Insect Pests; Poor Soil; Salt; Urban Conditions
Propagation
Stem Cutting

Planted at Hunnicutt

Nobody’s planted this one yet.