Thread Rush (Juncus Filiformis) is a perennial grass in the Juncaceae family with easy care difficulty. It requires high watering and full sun or partial shade light in USDA hardiness zones 3-7. This plant is safe for cats and dogs.

Juncus filiformis, known as thread rush, is a slender, grass-like perennial plant with a circumboreal distribution, native to northern latitudes of North America, Europe, and Asia.