Zieria smithii, commonly known as Sandfly Zieria or Smithian Zieria, is a robust shrub native to coastal heathlands and dry sclerophyll forests of eastern Australia. It typically grows to a height of 1-2 meters with a similar spread. The plant is characterized by its trifoliate leaves, where each leaf is composed of three leaflets, and its clusters of small, white, four-petaled flowers that are often less conspicuous than the foliage. The flowering season occurs in spring, and the flowers, though not particularly showy, are attractive to a variety of pollinators.

Sandfly Zieria is valued for its hardiness and the pleasant aroma of its leaves, which are reminiscent of citronella, making it a natural insect repellent. It is often used in cultivation for ornamental purposes, particularly in native plant gardens and as a low-maintenance shrub in urban landscapes. It requires full sun to part shade, well-drained soils, and can tolerate dry conditions once established. While it is generally disease-resistant, it can be susceptible to root rot in poorly drained soils. This plant is not known for aggressive roots or significant pest problems, making it a suitable choice for residential gardens.CC BY-SA 4.0