Family: Fabaceae Genus: Spartium  

Species: Spartium junceum L.
Common Name(s): Spanish broom, genet, weaver’s broom

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Spartium junceum, commonly known as Spanish broom, is a hardy plant well-suited to arid and semi-arid climates, making it a popular choice for landscaping in regions with hot, dry summers. It grows in a variety of soils, from sand to clay, and can tolerate a wide range of temperatures, from hot, dry desert climates to cooler coastal regions. This plant is highly resistant to pests and diseases, grows up to 10 feet tall, spreads up to six feet wide, and produces an abundance of fragrant, yellow, pea-like flowers that are arranged in long, dense clusters.40

Traditional Medicine

Spanish broom has been used in traditional medicine for centuries to treat a variety of ailments, such as respiratory problems, skin conditions, and digestive disorders. It has also been utilized as a cardiotonic, believed to strengthen and regulate heart function, support cardiovascular health and to alleviate symptoms of heart palpitations and irregular heartbeat. The leaves and twigs of Spanish broom, rich in tannins, are often used to make a tea believed to have a relaxing effect.41,42

Horticulture, Ornamental, and Other Colorful Uses

Spanish broom is a popular choice for bonsai, as it can be trained and pruned to form beautiful, miniature trees. However, it does come with challenges as its fast growth requires frequent pruning and wiring to maintain the desired shape. Its spiny branches can also make shaping and maintenance more difficult.43

Ecology

The fragrant flowers of the Spanish broom are an important and popular source of nectar for honeybees, butterflies, and other pollinators. The plant has been listed as an invasive species in some countries, particularly in the western United States, where it has escaped cultivation and has taken over native habitats, displacing native vegetation and impacting wildlife.44