Ludwigia Repens (Ovalis)

Plant Profile

• Scientific Name: Ludwigia repens (Ovalis is a variant with oval leaves)
• Common Names: Red Ludwigia, Creeping Primrose Willow
• Family: Onagraceae
• Origin: North & Central America (repens), Southeast Asia (Ovalis)
• Height: 10–20 inches (25–50 cm depending on conditions)
• Leaf Shape: Oval (Ovalis) or lance-shaped; coloration varies from green to deep red
• Placement: Midground or Background in aquascapes 

Water Parameters

• pH: 5.0–7.5 (slightly acidic to neutral)
• Hardness: Soft to moderately hard
• Temperature: 64–82°F (18–28°C) 

Lighting & CO₂

• Lighting: Medium to High
  (Higher light = more intense red coloration)
• CO₂: Not required but highly beneficial for compact growth and vibrant colors 

Growth & Care

• Growth Rate: Fast
• Difficulty: Easy to Moderate (hardy and adaptable)
• Substrate: Nutrient-rich substrate preferred
• Fertilization: Regular macro/micro nutrients; iron supplementation enhances red tones 

Propagation

• Method: Stem cuttings – trim tops and replant
• Trimming: Frequent trimming encourages bushy growth and prevents legginess

Color Enhancement Tips

• High light + iron-rich fertilization = deeper reds
• CO₂ injection improves density and color vibrancy

Special Features

• Can grow submerged or emersed (emersed plants may produce small yellow flowers)
• Provides shelter for fish and helps absorb excess nutrients, improving water quality
• Popular in Dutch-style aquascapes for its vivid color contrast