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Magenta Water Hedge
(Alternanthera rosaefolia)

francais anglais
Magenta Water Hedge

Magenta Water Hedge
(Alternanthera rosaefolia)

Very popular, this plant makes it possible to put contrast in your plant decoration: its bright red slices perfectly with the colour charts of green. To grow well, it needs a strong lighting. See more tips in this sheet!

Scientific name

Alternanthera sessilis
Alternanthera rosaefolia

Common name

Magenta Water Hedge
Alternanthera reineckii


what are his countries of origin?

Origin: South America

Ideal fertilization

how to fertilize this plant?

CO2: 10-40mg/l
Nitrates (NO3): 10-50mg/l
Phosphates (PO4): 0,1-3mg/l
Potassium (K): 5-30mg/l
Iron (Fe): 0,01-0,5mg/l


which group is this plant?



what is the type of plant?


Water parameters

What are the Water parameters for the maintenance of this plant?

T°: 20 to 29°C or 68 to 84°F
pH: 5.5 to 7.5
Hardness: 4 to 12°dGH




Minimal lighting

what brightness is needed?



what is the maximum size of the plant?

Up to 55 cm (22")

Plantation area

in which area of the aquarium install this plant?



how fast does this plant grow?



Who is the Alternanthera?


Who is the Alternanthera?

Considered by many aquarists as a very beautiful plant, its red colour will bring colour and contrast to your aquarium. Small curiosity: the leaves are bright red above, while below they pull more towards the pink. Thus, it brings a nice shade of red/pink contrasting with the green of other plants.

Planting and maintenance

How to plant and maintain the Alternanthera?

Planting and maintenance

How to plant and maintain the Alternanthera?

Position your Alternanthera rosaefolia on the back of your aquarium. Indeed, this plant can measure between 50 to 60 cm or 20 to 23 inches! If it finds itself in the foreground, it will hide the other plants. You can also opt for the sides of the tray, where it will also find its place nicely.

To grow and flourish, this plant needs lighting with excellent light quality. To keep the beautiful colours that characterize it, adjust the intensity of your lighting from medium to strong. If it is under dim lighting, its growth will be slow.

Plant your Alternanthera rosaefolia in a rich nutrient soil. Note that this plant prefers a FRESHWATER with low nitrate load.

For the plantation, group 4 to 5 feet leaving between each a space of several centimeters. This will allow a good development of each foot and that it benefits each one of a maximum of light.

When you see leaves blacken or decompose, do not hesitate to cut them.

A contribution in Co2 is advised but not essential.


How to farm the Alternanthera?


How to farm the Alternanthera?

It's simple, and impressive to see! Its farming is realized thanks to cuttings.

On a mother plant, cut a large stem (about 7 to 10 cm or 3 to 4 inches). Leave some leaves on it. Simply plant this stem in the substrate a few centimeters from the mother's foot or in another area of the aquarium.

It is absolutely necessary to plant the stem in the nutritive part of the substrate and not only in the gravel. It is on this condition that the plant takes root and develops.

As the days go by, your little stalk will root and grow to become as beautiful as the mother foot!

Good to Know

Good to Know

Find all additional information!

Alternantora Rosaefolia is a variety of Alternantora Sessilis.

In the Amaranthaceae family, this species is the easiest to maintain. However, it can be a little tricky for novice aquarists because of these lighting requirements.

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