French broom has a native range encompassing parts of Europe and the Mediterranean. It is cultivated and appreciated in various regions for its ornamental qualities. Outside its native habitat, french broom has been introduced to continents including South America, Asia, and Africa. Some areas have reported french broom to be potentially problematic, where it may be considered invasive, especially in regions of the Southern Hemisphere. In these areas, french broom may have an impact on local ecosystems.

French broom contains toxic alkaloids in its flowers and seeds, posing a moderate toxicity risk to cats and dogs if ingested. Any part of the plant can lead to poisoning, with symptoms including gastrointestinal upset and lethargy. If ingestion is suspected, immediate veterinary care is crucial.

French broom originates from Europe, particularly the Mediterranean basin. This plant is considered a weed due to its prolific reproductive traits and aggressive spreading ability. Its robust adaptability allows it to thrive in a variety of conditions, which combined with its rapid growth and high seed production, makes controlling its spread challenging, especially in gardens. French broom can jeopardize the diversity of native plants, as it readily outcompetes other species for resources. Additionally, it poses fire risks due to its dry, flammable foliage. If you choose to grow this plant, often recognizable by yellow, pea-like flowers, stay vigilant about its management to contain its invasiveness. French broom mainly reproduces through seed dispersal, which are carried away by wind or animals, underlining its competence in colonizing new habitats.

The best season to address french broom is usually before the peak of the growing season, early spring or late winter. It is crucial to act before the plant sets seed.