Sagittaria Subulata 'Dwarf' - Immersed Potted Plant

Sagittaria subulata, commonly known as Dwarf Sagittaria or Needle Sagittaria, is a versatile and hardy aquatic plant. It is widely appreciated by aquarists for its ability to thrive in a variety of conditions and its ease of care. This plant is perfect for creating a lush, grassy foreground or midground in aquascapes.

Physical Characteristics

Leaf Structure: Sagittaria subulata features long, narrow, ribbon-like leaves that can range from light green to dark green in colour. The leaves are typically about 1-3 mm wide and can grow up to 20 cm in length, depending on the conditions.

Growth Form: This plant has a rosette growth form, with leaves emerging from a central point and spreading outward. It tends to grow low to the substrate, forming dense mats of greenery.

Stem Structure: Sagittaria subulata does not have a traditional stem structure as its leaves grow directly from the base in a rosette pattern.

Root System: The root system of Sagittaria subulata is well-developed, with fine roots that spread widely in the substrate. This helps the plant anchor firmly and absorb nutrients efficiently.

Aquarium Requirements

Lighting: Sagittaria subulata can adapt to a wide range of lighting conditions, from low to high. For optimal growth and to maintain its vibrant green colour, it is recommended to provide lighting in the range of 20-60 lumens per litre.

Substrate: A nutrient-rich substrate is beneficial for the healthy growth of Sagittaria subulata. While it can grow in plain sand or gravel, an enriched substrate will support more robust growth and propagation.

CO2 Injection: CO2 injection is not necessary for Sagittaria subulata, but it can enhance growth and promote a more lush appearance. It can thrive well in low-tech setups without additional CO2.

Fertilisation: Regular fertilisation will support the plant's growth, especially in low-tech tanks. A balanced liquid fertiliser with macro and micronutrients is recommended to ensure the plant receives adequate nutrition.

Water Parameters:

• Temperature: 18-28°C
• pH: 6.0-8.0
• Hardness: Soft to hard water (2-15 dGH)

Propagation: Sagittaria subulata propagates through runners. These runners spread out from the base of the plant and produce new plantlets, which can be separated and replanted to expand the coverage.

Maintenance: This plant requires minimal maintenance. Regular trimming of older leaves and occasional thinning of the runners will help maintain its neat appearance and prevent overcrowding.

Aquascaping Use

Sagittaria subulata is ideal for creating a lush, grassy foreground or midground in aquascapes. Its low-growing, dense form makes it perfect for carpeting effects or for filling in spaces around rocks and other hardscape elements. It provides a natural look and enhances the overall aesthetic of the aquarium.

Challenges

Sagittaria subulata is a very hardy plant with few challenges. The primary consideration is ensuring it receives adequate light and nutrients to maintain its growth and colour. It can sometimes spread quickly, so regular maintenance is necessary to prevent it from overtaking other plants.

Sagittaria subulata is a fantastic choice for aquarists of all experience levels. Its ease of care, adaptability, and attractive appearance make it a versatile addition to any aquascape. Whether used for carpeting or as a midground plant, it can significantly enhance the visual appeal of an aquarium.

By providing the right conditions and minimal maintenance, Sagittaria subulata can become a beautiful and vibrant part of your aquatic landscape. Its versatility and ease of care make it a popular choice among aquarists looking to create stunning underwater scenes.