Description
Sagittaria subulata is a fast-growing, adaptable aquatic plant, commonly called awl-leaf arrowhead or dwarf sagittaria, known for its grass-like, narrowly linear to ovate leaves that form a carpet or dense group in aquariums and shallow wetlands. It is an undemanding, perennial herb that tolerates a wide range of water parameters, thrives in low to moderate lighting, and can be propagated by runners, making it a popular choice for beginners.
Appearance
Leaves:
The plant develops narrowly linear to ovate leaves that can grow submerged, floating, or emersed.
Color:
Under low to moderate light, it is typically green, but it can develop a brownish-green or reddish-brown hue with more light.
Height:
While often used as a foreground carpet plant, it can grow taller, sometimes reaching 50 cm, which makes it suitable for middle or background planting in some layouts.
Habitat & Growth
Native Range:
Sagittaria subulata is native to the eastern United States and South America.
Conditions:
It is a hardy perennial herb that thrives in temperate climates and shallow waters.
Growth Habit:
It grows from tuberous roots and is characterized by its fast growth and the formation of runners, which establish new plants and create dense groups.
Aquarium Care
Lighting: Prefers low to moderate lighting, but can tolerate a wide range.
Substrate: Can grow in almost any substrate, with sand and substrate tablet fertilizers being effective.
CO2: Not required, but can help achieve a faster carpet effect.
Water Parameters: Tolerates a wide range of pH (5-9) and water hardness (2-30°dKH).
Propagation: Easily propagated by cutting the runners and removing new plants, which can then be planted to create more dense groups.
Uses
Aquascaping: A popular foreground plant for creating a dense carpet effect or a transition to taller background plants.Natural Look: Its grass-like texture adds a natural look and can provide contrast with other plant species.
Fry Cover: Provides hiding spaces and shelter for fry in an aquarium.
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