Sagittaria subulata 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.
In order to achieve strong growth the substrate should contain iron, while light is less important. Planted in a group or as a standalone this aquarium plant can be striking. It can grow well in both hard and slightly soft water. Optimum growth temperature is 64.4 to 82.4 degrees, but it can withstand temps from very low to 84 degrees.
Sagittaria subulata requires low to high lighting (1.5 - 4 watts/gal), grows quickly and propagates by runners which will form a dense grouping producing 2 - 3 leaves and one runner per 2-3 weeks.
Family Alismataceae
Region America
Country of origin South America
Height 5-30+ cm
Width 10-15 cm
Light requirements low-very high
Temperature 16-28 °C
Hardness tolerance soft-very hard
pH tolerance 6-9
Growth fast
Demands easy