Sagittaria graminea is also known as the Sagittaria graminea subsp. graminea, Sagittaria graminea subsp. weatherbiana, Grassy Arrowhead, Grass-leaved Arrowhead, or Narrow-leafed arrowhead. It is an aquatic plant that grows in wet marshes and lakes. The name Sagittaria is derived from Sagitta in Latin which refers to the shape of the leaves and means arrow. Sagittaria graminea is part of the Alismataceae family of plants. It is native to eastern North America. It is a fast-growing perennial plant.
Sagittaria graminea can grow to 90cm or 3ft. It has long narrow lanceolate leaves. the leaves and stems grow from the base. It has small white flowers with 3 petals that appear in the summer. Water can be up to 10cm over the crown. Plant Sagittaria graminea where there is full sun and in wet boggy, humus-rich soil. It could tolerate a slight shade. Sagittaria graminea propagates by runners or self-seeding. It is generally disease-free and pest-free, but still, watch out for spider mites and aphids.