Ludwigia arcuata

Ludwigia arcuata is a slender and elegant stem plant native to the southeastern United States, prized in the aquarium hobby for its fine, needle-like leaves that develop a beautiful warm orange to deep red colouration under high light. Its delicate, arching foliage creates a soft, airy texture in the midground to background of any planted aquascape, offering a more refined and graceful alternative to the broader-leaved Ludwigia species. One of the most rewarding red plants for aquarists who appreciate subtlety and elegance over bold statement colour.

Propagation: Take stem cuttings of 5–10cm, remove lower leaves, and replant into the substrate. Grows at a moderate pace and benefits from regular trimming to encourage bushy, dense growth.

Care Guide

• Origin: Southeastern United States
• Light: Medium to High (high light intensifies red-orange colouration)
• Water Parameters: pH 6.0–7.5 | Temp 18–28°C | Soft to moderately hard water
• CO2 Required: No (CO2 enhances colour and growth rate)
• Fertiliser: Regular liquid fertiliser with iron recommended
• Placement: Midground to Background
• Skill Level: Beginner to Intermediate
• Max Size: 20–40cm