Agathosma sedifolia, commonly known as Tick Buchu, is a species of flowering plant in the family Rutaceae, native to the Western Cape of South Africa. This shrub is a member of a genus renowned for its aromatic foliage and is of interest for its specific botanical characteristics and ecological role within its native fynbos biome. The plant typically presents as a small to medium-sized shrub, often reaching heights of around 0.5 to 1.5 meters. Its growth habit is generally erect to spreading, forming a dense or somewhat open structure depending on environmental conditions. The leaves are a key distinguishing feature, being small, ovate to obovate, and arranged oppositely along the stems. They are often leathery in texture and possess numerous oil glands, which contribute to the characteristic aromatic scent when crushed, a common trait among many Agathosma species. The bark is unremarkable, typically smooth on younger stems and becoming slightly rougher with age. Flowering occurs typically from late winter through spring, with the exact timing influenced by local rainfall and temperature. The flowers are small and star-shaped, usually white or pale pink, and borne in dense clusters, often at the tips of branches. These inflorescences create a visually appealing display against the backdrop of the evergreen foliage. Following pollination, the plant produces small, dehiscent capsules that contain the seeds. The seeds are typically small and ovoid. Agathosma sedifolia is endemic to the Cape Floristic Region of South Africa, where it is found in various fynbos vegetation types. It thrives in well-drained, sandy or rocky soils and prefers full sun exposure. While it is adapted to the Mediterranean climate of its native range, characterized by cool, wet winters and hot, dry summers, its cultivation outside of this region requires careful attention to drainage and protection from excessive moisture, particularly during cooler months. Historically, plants in the Agathosma genus have been utilized for their aromatic properties, with various species, often referred to collectively as "buchu," having traditional uses. However, specific documented uses for Agathosma sedifolia are less prominent in readily available scientific literature compared to other buchu species. Its primary significance lies in its contribution to the biodiversity of the fynbos ecosystem, where it plays a role in habitat structure and provides resources for local fauna. The plant's adaptation to nutrient-poor soils and fire-prone environments are characteristic of fynbos flora, showcasing its resilience within its natural habitat.