Marsh Arrowgrass (Triglochin Palustris) is a perennial herb in the Juncaginaceae family with moderate care difficulty. It requires high watering and full sun or partial shade light in USDA hardiness zones 3-9. This plant is toxic to cats and dogs — keep it out of reach of pets.

Triglochin palustris is a perennial herbaceous plant in the arrowgrass family, commonly found in damp grasslands, calcareous soils, fens, and marshy meadows.