Juncus squarrosus, commonly known as Heath Rush, is a perennial herb native to acidic, nutrient-poor grasslands, heaths, and bogs across Iceland, Europe, and Morocco. It has also been introduced to Greenland, Svalbard, Tasmania, New Zealand, and Wisconsin. Typically, it grows to a height of 10-30 cm, with a clumping habit and upright, cylindrical, hollow stems. The flowers are small, brownish, and clustered at the stem tips, blooming from June to August. Heath Rush is not particularly showy, but its form and texture can add interest to garden compositions.

Heath Rush is valued for its ability to tolerate pollution and its adaptability to wet conditions, making it suitable for rain gardens, bog gardens, and areas with poor drainage. It is also used for erosion control on banks and slopes. In cultivation, it prefers full sun to part shade and thrives in moist to wet soils with poor fertility. While it is generally low-maintenance, it can spread in ideal conditions and may require management to prevent unwanted naturalization.CC BY-SA 4.0