Scotch Broom

Scotch broom (Cytisus scoparius) is a perennial shrub native to western and central Europe. It typically grows to about 1-3 meters in height and is distinguished by its bright yellow flowers and green, slender, branch-like stems that are somewhat angular. The leaves are small and compound with three leaflets, though they can appear somewhat sparse, contributing to the plant's airy, twiggy appearance.

Flowering in late spring to early summer, scotch broom's blossoms are profuse and vibrant, creating a striking display against its green stems. The flowers are not only visually appealing but also emit a distinctive scent. The scent profile of scotch broom is described as intensely floral and slightly sweet, with dimensions of freshness reminiscent of certain pea flowers (to which it is closely related botanically). Some people also detect a subtle peppery or spicy undertone in the fragrance.

Though beautiful and fragrant, it's worth noting that scotch broom can become invasive outside its native range, often outcompeting local vegetation due to its robust growth and adaptability to various environments. Additionally, it's capable of fixing nitrogen in the soil, which, while beneficial in poor soils, can also alter ecosystem nutrient balances and further promote its invasiveness in non-native areas.