Source: Wikimedia Commons
Alternanthera Reineckii
IntermediateAlternanthera reineckii
A stem plant coloring deep red to pink. Creates vivid accent color among green aquatic plants.
About
Alternanthera reineckii is a stem plant in the family Amaranthaceae native to South America, and is the archetypal red aquarium plant for mid to background accent planting. Leaf surfaces range from deep crimson to pink, with vivid red-purple undersides, creating bold contrast against green planting. Strong illumination is the primary determinant of coloration intensity; CO2 injection deepens the pigmentation further, and regular dosing with iron-rich liquid fertilizers has a pronounced positive effect. Growth rate is relatively slow for a stem plant, making it less demanding in terms of trimming frequency. Propagation is by cutting and replanting stems. Several cultivars and varieties circulate in the trade, including the compact 'Mini' and the broader-leaved 'Rosaefolia,' offering flexibility in placement. Slightly acidic to neutral water is preferred. Intermediate-level difficulty reflects the consistent management required to sustain vivid red coloration.
Size of the Alternanthera Reineckii
The Alternanthera Reineckii grows to 15-40cm.
Basic Info
Origin
South America (Brazil, Argentina, Paraguay, and surrounding regions)
Lifespan
Perennial
Size
15-40cm
Temperature
20〜28℃
Watering & Fertilizer
Root tabs, CO2, Iron
Growing Tips
Lighting
Strong light is the single most important condition for colour; under weak lighting the red fades and the plant turns greenish. Plant it in a well-lit midground to background position.
CO2 & Fertilizer
CO2 injection deepens the red further. Dose an iron-containing liquid fertiliser regularly and combine it with substrate fertiliser to keep the colour stable.
Water Temperature & Quality
Prefers slightly acidic to neutral water. Maintaining the colour calls for frequent care that keeps the water quality stable.
Trimming & Propagation
Growth is relatively slow for a stem plant. Trim the stems as they lengthen and replant the cuttings to multiply it.
Cautions
Colour drops when light or CO2 is insufficient, so set up the environment before introducing it. An intermediate-level plant.
Alternanthera Reineckii FAQ
QWhat is the growing difficulty level for Alternanthera Reineckii?
Intermediate. A variety suitable for intermediate growers. Requires some cultivation experience and knowledge of environment management. Pay careful attention to temperature and humidity control.
QHow large does Alternanthera Reineckii get?
The mature size of Alternanthera Reineckii is 15-40cm. This may vary slightly depending on cultivation environment and individual differences.
QHow should I water and fertilize Alternanthera Reineckii?
Alternanthera Reineckii: watering & fertilizer — Root tabs, CO2, Iron. Aim for appropriate frequency and amount.
QWhat is the typical price for Alternanthera Reineckii?
The price of Alternanthera Reineckii varies significantly by variety, characteristics, size, and lineage. Please check GrowerDirect's price guide for the latest market information.
Last updated: September 17, 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.
Taxonomy & Authority
Regulations & Conservation Status
Sources: Ministry of the Environment Designated Invasive Species List (Invasive Species Act) / CITES Appendix II listed plant taxa (family and genus level)
Regulations may change. Always verify the latest information with the relevant authorities.
Related Species
Find listings for this species
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