Ludwigia repens

Overview: Commonly known as water primrose, Ludwigia repens originates from the tropical waters of North and Central America, as well as the Caribbean islands. This beautiful freshwater aquarium plant has the characteristic two-toned color of leaf; olive green on top and reddish brown underneath. It is amphibious in nature and grows well when fully or partially submersed. It serves as a great plant for aqua-scape when used as a midground or background plant in aquariums.

Appearance: The unique appearance of this aquatic plant is characterized by the striking dark red leaves and stalk that adds to the decorative appeal of the aquarium. The stems grow between 20 and 50 cm long, and 4-6 cm wide.

Hard or Soft plant: Hard plant

Ideal water temperature: Water temperature conditions for optimum growth of Ludwigia repens ranges between 17 and 28 degree Celsius.

Lighting conditions: The stunning red coloration of leaves majorly depends on the light intensity. It prefers a moderate to high-intensity lighting to maintain its vibrant color. 2.5 watts per gallon is preferred to maintain the red coloration, but even lower intensity lighting like 1.75 watts per gallon with power impacts work well with Ludwigia repens.

Ideal pH conditions: Ludwigia repens thrives under pH levels 5 to 8.

Functions and advantages:

1) Makes a great addition to aquariums as a mid-ground or background plant in aquascaping.

2) Ludwigia repens leaves are edible. Even its shoots are used as vegetables in some countries.

Did you know? Ludwigia repens thrives under low nitrate levels (>5ppm), high phosphate levels (1.5 – 2ppm), and iron trace elements. It produces many side shoots, hence pruning will provide a bushy look to enhance its aesthetic appeal.