One species · 4 forms
Alternanthera reineckii varieties
Alternanthera reineckii
Alternanthera reineckii is the dependable red stem: purple-red leaves that hold their color without extreme light or a CO2 system. The named forms change the height and the shade, not the recipe.
Pick a variety
Care, the same for every form
One setup covers every form on this page.
- Difficulty
- Medium
- CO2
- CO₂ beneficial
- Growth rate
- Medium
- Type
- Stem
- Temperature
- 68–82°F (20–28°C)
- pH
- 6.0–7.5
Red without the drama
Most red plants demand high light to color up; reineckii carries red pigment by default and keeps it under moderate light. Iron and decent light deepen the wine tones, and CO2 tightens the growth, but none of it is required the way it is for a red rotala.
Mini changed the job description
The dwarf form stays around ten centimeters and branches into low red cushions, which put reineckii in the foreground for the first time. Rosanervig adds pale veins over pink leaves, a nursery selection with the same habit as the standard plant, and Green swaps the red for olive on an otherwise identical stem.
Common questions
Why are the lower leaves falling off?
Shading. The canopy steals the light and the plant abandons what it cannot power. Trim the tops, replant them, and keep the stand thinned so light reaches down the stems.
Does AR need CO2?
No. It grows and stays red without it; CO2 just makes the growth denser and faster. The Mini form in particular benefits if you want a tight carpet-like cushion.
Related plants

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Ludwigia Rubin
Ludwigia repens 'Rubin'FreshwaterMedium lightMidground19.7 in (50 cm)
Ammannia senegalensis
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Japanese cress
Cardamine lyrataFreshwaterMedium lightMidground17.7 in (45 cm)
Aciotis acuminifolia
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