Sagittaria subulata from South America is an ideal, undemanding foreground plant whose short runners form a compact group. Place individual plants 2-4 cm apart. This plant may cause problems because in certain conditions it suddenly grows to a height of 50 cm when it grows older. But if it is then moved into the background it may become low again. In the aquarium, it sometimes sends a long flower stem to the surface, and small white flowers unfold just above the water surface. Plant info Type: Stolon Origin: South America Country or continent where a plant is the most common. Cultivars arise or are bred in cultivation. Growth rate: High Growth rate of the plant compared to other aquatic plants. Height: 5 - 30+ Average height (cm) of the plant after two months in the tank. Light demand: Low The average or medium light demand of an aquarium plant is 0,5 W/L. CO2 : Medium A medium need in CO2 is 6-14 mg/L. A high demand in CO2 is approx. 15-25 mg/L.