Mermaid Weed (Proserpinaca palustris) (Live Plant)

Proserpinaca palustris, also known as Mermaid Weed, is an aquatic plant with delicate, finely serrated leaves that range from green to coppery orange and reddish tones depending on growing conditions. Its upright stems and distinctive feather-like foliage create a textured, eye-catching appearance in planted aquariums.

Common names: Mermaid Weed, Marsh Mermaidweed
Scientific name: Proserpinaca palustris
Plant type: Stem plant
Approximate height: 10–40 cm
Growth rate: Moderate
Difficulty: Moderate; benefits from strong lighting and supplemental CO₂
Placement: Midground to background
Origin: The Americas, including North America, Central America, and the Caribbean
Basic care information: Proserpinaca palustris is an attractive aquatic stem plant known for its distinctive serrated leaves, which become finely divided and feather-like when grown underwater. Its foliage can develop beautiful copper, orange, or reddish tones under strong lighting, while lower light may result in greener growth. Plant stems in nutrient-rich substrate and provide adequate nutrients and stable water conditions. Supplemental CO₂ is recommended for stronger growth and more intense coloration. Propagate by trimming the stems and replanting the cuttings. Regular pruning helps maintain a bushy shape and prevents lower leaves from becoming shaded.