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Ludwigia
IntermediateLudwigia
Entry-level red aquatic plant. Red coloring depends on light and CO2. Repens and Super Red are popular varieties.
About
Ludwigia is a genus of aquatic stem plants in the family Onagraceae, native primarily to North and South America. It is the quintessential genus of red aquatic plants in the hobby, with numerous species coloring from bright orange to deep crimson depending on light intensity, CO2 levels, and iron availability. Species range from beginner-friendly L. repens and L. palustris to the demanding L. super red, which requires high light and injected CO2 for its spectacular coloration. Strong illumination is the single most critical factor for red pigmentation; iron-rich liquid fertilizers further enhance the effect. Densely planted backgrounds of red Ludwigia create vivid color gradients that contrast strikingly against green planting, making this genus a staple in competition aquascaping.
Size of the Ludwigia
The Ludwigia grows to 15-40cm.
Temperature & humidity for the Ludwigia
The ideal temperature for the Ludwigia is 22〜28℃.
Basic Info
Origin
North and South America (tropical to temperate)
Size
15-40cm
Temperature
22〜28℃
Growing Tips
Lighting
High light is the most important factor for red-to-orange colouring. Plant densely in the background where light reaches well.
CO2 & Fertilizer
After light, CO2 injection and iron-containing liquid fertilizer are the next most effective for colour. Some species such as L. super red require high light and CO2.
Water Temperature & Quality
Aim for a water temperature of 22–28°C. Difficulty varies widely by species, so choose one that suits your tank conditions.
Trimming & Propagation
Propagate by replanting trimmed stems. Dense planting in the background produces a beautiful colour gradient.
Notes
Stays green in low light — ensure adequate lighting
Ludwigia FAQ
QWhat is the growing difficulty level for Ludwigia?
Intermediate. A variety suitable for intermediate growers. Requires some cultivation experience and knowledge of environment management. Pay careful attention to temperature and humidity control.
QWhat is the ideal temperature for Ludwigia?
The ideal temperature for Ludwigia is 22〜28℃. Avoid sudden temperature changes and maintain a stable environment.
QHow large does Ludwigia get?
The mature size of Ludwigia is 15-40cm. This may vary slightly depending on cultivation environment and individual differences.
QWhat is the typical price for Ludwigia?
The price of Ludwigia varies significantly by variety, characteristics, size, and lineage. Please check GrowerDirect's price guide for the latest market information.
Last updated: June 23, 2026
References & Sources
Edited & verified by: GrowerDirect Editorial Team
The classifications, regulations, and growing data on this page are created and verified based on the primary information database below.
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