Persicaria Kawagoeanum
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Persicaria kawagoeanum is a bold, eye-catching freshwater stem plant loved for its large leaves and intense red to reddish-brown coloration. Compared to finer red stems, it brings a strong, dramatic presence to planted aquariums and works beautifully as a focal midground or background plant.
Common Name: Persicaria kawagoeanum
Scientific Name: Persicaria kawagoeanum
Family: Polygonaceae
Size: 12–20 inches (30–50 cm)
Difficulty: Moderate
Native Region: East Asia (Japan)
Tank Size: Medium to large aquariums
Temperature: 72–82°F (22–28°C)
pH: 5.5–7.5
Lighting: Moderate to high
CO₂: Highly recommended for strong growth and coloration
Substrate: Nutrient-rich substrate preferred
• Color Development: High light, CO₂, and iron-rich fertilization bring out deep red and wine tones
• Leaf Size: Leaves are larger than most stem plants—avoid overcrowding nearby species
• Trimming: Cut and replant tops to maintain bushy growth
• Aquascape Use: Best as a midground-to-background accent or specimen plant, adding bold structure and dramatic contrast