Ludwigia sp. 'Dark Orange'

The trade name Ludwigia sp. 'Dark Orange' refers to the cultivar Ludwigia sp. 'Atlantis' and is regarded as its synonym.¹³⁴ The cultivar comes from the former Atlantis nursery (Altlandsberg-Wegendorf), where Tomas Kaliebe selected and named it.²³⁴ It presumably belongs to the hybrid L. palustris × L. repens;²³ the wild form probably originates from North America.²

Under water the foliage takes on yellowish orange to dark orange tones depending on the light, and the pale yellow veins recede;²³ emersed leaves in particular show high-contrast markings.²³⁴ The stem plant is considered easy, is planted in larger numbers in the midground and background and propagated by cuttings;²³ its growth is given partly as fast, partly as moderate.²³ It can also be grown emersed.²

1. Ludwigia sp. 'Dark Orange' – Flowgrow aquatic plant database (accessed 5 October 2026)
2. Ludwigia sp. 'Atlantis' – Flowgrow aquatic plant database (accessed 5 October 2026)
3. Ludwigia sp. 'Dark Orange' ('Atlantis') – Aquasabi (accessed 5 October 2026)
4. Kasselmann, C. (2019): Aquarienpflanzen. 4th edition (German). - Ulmer Verlag, Stuttgart: p. 443.