Ludwigia atropurpurea Care Guide
Ludwigia atropurpurea is a South American stem plant of the family Onagraceae, grown for dark purple-red foliage under bright light with CO2.
Overview
Ludwigia atropurpurea is an aquatic stem plant of the genus Ludwigia within the family Onagraceae. Ludwigia comprises roughly 82 species with a cosmopolitan but mainly tropical distribution, the majority centred in South America. The plant is grown as a colour accent for its dark purple-red foliage, which develops most strongly under good lighting and nutrient supply.
Taxonomy
- Family: Onagraceae
- Genus: Ludwigia
- Scientific name: Ludwigia atropurpurea
- Common name: Dark-purple Ludwigia
Habitat
Species of Ludwigia characteristically grow in wet habitats, and some are nearly or fully aquatic, with adaptations such as aerenchyma for life in water. Ludwigia atropurpurea is of South American origin, where the genus reaches its greatest diversity.
Aquarium requirements
- Temperature: 22-28 °C (72-82 °F)
- pH: 5.5-7.0
- GH: 1-8 °dGH
- Lighting: high
- CO2: required
- Maximum height: up to about 35 cm
- Placement: mid-to-background
Growth and care
This is a moderately fast stem plant with high nutrient demand. Soft, slightly acidic water, a nutrient-rich substrate, CO2 injection and a steady micronutrient supply, including iron, support the dark purple-red colouration. Insufficient light or nutrients diminish the colour intensity.
Propagation
Ludwigia atropurpurea is propagated by cuttings. Trimming the shoot tip promotes lateral branching, and cut tops can be replanted to establish new plants. Regular trimming maintains a compact, well-shaped group.