Dwarf Sagittaria ~ Sagittaria subulata

Dwarf Sagittaria, commonly known as Dwarf Sag, is a hardy and fast-growing freshwater plant that is widely used in aquascaping for its grass-like appearance. Native to the shallow waters of the Americas, particularly in South and North America, it thrives in nutrient-rich substrates and can create a lush, carpeted effect in aquariums. Its adaptability and ease of care make it an excellent choice for aquarists of all experience levels.

• Type: Rosette plant
• Size: 3-10 inches tall (depending on conditions)
• Light: Low to moderate (6-10 hours daily)
• Substrate: Nutrient-rich substrate or root tabs recommended
• CO2: Not necessary but promotes faster growth
• Water Requirements: 68-82°F, pH 6.5-8.0, soft to moderately hard water
• Growth Rate: Fast

In the wild, Dwarf Sag grows in shallow, slow-moving rivers, ponds, and marshes, where its long, slender leaves allow it to thrive in both submerged and emersed conditions. In aquariums, it spreads rapidly through runners, forming dense carpets when grown under proper lighting and nutrients. While it can tolerate low light, brighter conditions encourage faster growth and more compact, grass-like leaves. A nutrient-rich substrate supports healthy root systems, and liquid fertilizers can supplement nutrient levels in low-tech tanks.

This plant is ideal for foreground placement or as a carpeting plant in aquascapes. It pairs well with taller plants in the background to create depth and contrast. Regular trimming is necessary to maintain its height and prevent overgrowth.

Interesting Fact: Dwarf Sag’s ability to grow both submerged and emersed has made it a common sight in swampy and floodplain areas. When grown emersed, its leaves become shorter and more rigid, adapting to the terrestrial environment, while submerged growth produces longer, more flexible leaves.