The yellow-flowering bush is native to the Mediterranean region, and while it may still be commonly sold in some garden stores, it is considered an invasive plant in most places where it has been introduced.

The pods are 2–3 cm (3⁄4–1+1⁄4 in) long, tough and hard, covered all over with hairs,[3] and are transported easily by flowing water and animals.

The generous seed production and the plant's ability to re-sprout after cutting or burning help it to invade new habitat vigorously when introduced.

Its reproductive vigour and preference for Mediterranean climates make it a very successful species in California and the Pacific Northwest, where it is considered a severe noxious weed, covering over 40 kilohectares.

Stands of French broom can be so thick that they make meadows and pastures useless for wild and domestic animals.