Carmichaelia appressa, commonly known as Prostrate Broom, is an evergreen shrub native to the dry, rocky, and gravelly soils of the South Island of New Zealand, particularly in the Otago region. It typically grows to a height of 1 foot (0.3 meters) and a width of 2 feet (0.6 meters), forming a low, spreading mat. The plant is characterized by its small, scale-like leaves and its ability to fix nitrogen in the soil. During the summer months, Prostrate Broom produces small, inconspicuous white and purple flowers, which are followed by slender, elongated seed pods.

Prostrate Broom is valued for its ability to thrive in poor soils and its use in rock gardens, as ground cover, and in xeriscaping due to its drought tolerance. It is also appreciated for its nitrogen-fixing properties, which can improve soil fertility. In cultivation, it requires minimal maintenance, making it a suitable choice for gardeners seeking low-care plants. While it prefers full sun or part shade, it is adaptable to a range of light conditions. It is important to provide well-draining soil to prevent root rot. Prostrate Broom is generally pest and disease-free, but it can be sensitive to overwatering and excessive humidity.CC BY-SA 4.0