Spanish Broom (Spartium junceum)

Spanish broom, or Spartium junceum, is a fast-growing, drought-resistant shrub native to the Mediterranean region. It typically reaches heights of 6 to 13 feet (2 to 4 meters), with long, slender, green stems that resemble rushes. The small, sparse leaves are deciduous in dry conditions, allowing the plant to conserve water. During late spring and summer, it produces clusters of bright yellow, pea-like flowers with a strong, sweet fragrance, attracting pollinators like bees and butterflies.

Spanish Broom
Spanish Broom

After flowering, Spanish broom develops elongated seed pods that turn brown as they mature, eventually splitting open to disperse seeds. This shrub thrives in poor, rocky, or sandy soils and tolerates full sun and drought, making it well-suited to arid landscapes. It grows rapidly, forming dense thickets that help prevent soil erosion. However, in some regions, it is considered invasive due to its ability to spread aggressively.

Often planted for erosion control, Spanish broom also serves as an ornamental shrub in Mediterranean-style gardens. Historically, its tough fibers were used for making ropes, mats, and textiles. While beautiful, it contains toxic compounds that can be harmful if ingested by humans or animals.

Spanish Broom Flower
Spanish Broom Flower

Scientific Classification of Spanish Broom

KingdomPlantae
CladeAngiosperms
CladeEudicots
OrderFabales
FamilyFabaceae
GenusSpartium
Scientific NameSpartium junceum
Spanish Broom Bark
Spanish Broom Bark

Quick Information

Plant TypeShrub
IdentificationHeight: 6 to 13 feet (2 to 4 meters) Leaves: Small, sparse, deciduous in drought Stem: Slender, rush-like, green Flowers: Bright yellow, pea-like, fragrant, blooming in late spring and summer Fruits: Brown seed pods that split open when mature Roots: Deep, aiding drought tolerance Growth Habit: Upright, bushy, fast-growing
DistributionNative to the Mediterranean, naturalized in other regions with dry climates
HabitatRocky slopes, dry grasslands, roadsides, disturbed areas
USDA Hardiness ZoneZones 7–10
Growth RateFast
LifespanPerennial
Growing ConditionsSunlight: Full sun Soil: Poor, rocky, sandy, well-drained Water: Low, drought-tolerant
Drought ToleranceHigh
DiseasesGenerally disease-resistant, but can develop root rot in overly wet soils
PestsOccasionally affected by aphids and scale insects
Reproductive SystemProduces seeds in pods, spreads easily
PropagationSeeds, cuttings
Wildlife ValueAttracts pollinators like bees and butterflies
UsesErosion control, ornamental, fiber production
IUCN Conservation StatusNot Evaluated