Eremophila glabra, commonly known as Tar Bush, is a versatile and hardy shrub native to a wide range of habitats in Australia, including arid inland areas, woodlands, and coastal dunes. It is a member of the Scrophulariaceae family and exhibits significant morphological variation, with some forms being low and ground-hugging while others are more erect. This shrub typically grows to a height of 0.1–3 m (0.3–10 ft) and can be either prostrate or upright in form. The flowers of Tar Bush are particularly notable, coming in shades of red, orange, yellow, or yellowish-green, and are borne singly or in pairs in the leaf axils on stalks 3–10 mm (0.1–0.4 in) long. The flowering season extends from early autumn to summer (March to December in Australia), and the flowers are followed by oval to almost spherical fruits that are glabrous, dry or fleshy, and dark brown.

Tar Bush is highly valued for its low maintenance requirements, drought tolerance, and the ability to provide year-round interest in native gardens. Its variability allows gardeners to create a diverse display with a single species. It is commonly used in xeriscaping, as ground cover, and in rockeries. Eremophila glabra thrives in a range of soils and tolerates full sun to full shade. While most forms are frost-hardy and drought-resistant, some hairy-leaved varieties may not withstand high humidity. Cultivars like "Kalbarri Carpet" and "Murchison Magic" offer additional ornamental appeal. In cultivation, it does best with low water and medium drainage.CC BY-SA 4.0