Lagarosiphon major

Lagarosiphon major

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Lagarosiphon major is a perennial aquatic plant native to southern Africa. Generally the whole plant develops completely submerged, reaching the surface even in streams or lakes with depths close to six meters. The rhizomatous roots sink into the soil, from which numerous cylindrical stems, thin, not very branched along the length, depart but with a dense "crown" near the surface.
The stem of these plants is certainly one of the most interesting aspects, because its very particular shape makes it truly unique.
The leaves are small, bright green and grow on the entire stem, in a spiral; on the surface they often constitute dense green benches. The plants of Logarosiphon are easily recognizable by their dark green color and by the stems that in nature reach heights even higher than 5 meters.
The female plants in spring produce small white inflorescences, which float on the surface. In many areas of the earth this plant has become highly pest, therefore its trade is forbidden; surely growth must be controlled in small aquatic gardens or in aquariums, it is forbidden to "free" the plant in water courses.
One of the most frequent uses of this plant is as an aquarium plant, an environment in which this plant develops very well.
Where this plant finds the ideal conditions for its development it tends to grow excessively until it becomes a weed in those stretches of river where the water flow is slower. The reproduction of this plant can become so intense as to obstruct the river bed and fill the water space making it difficult to navigate for any boats.


As for the exposure of Lagarosiphon major, this plant grows and develops without problems in any waterway or pond, the important thing is that the water is clear and fresh, in fact water temperatures above 25 ° C they are fatal. It does not fear the cold, rather it prefers fresh waters. It does not need fertilizer, as the growth is very rapid and does not need to be stimulated.


The fleshy roots of this plant develop in any soil. The Lagarosiphon major is in fact a rather rustic species with regard to the types of soil, which is well suited to many conditions.


Plants rarely produce seeds, since both male and female plants exist only in the place of origin; in cultivation only female plants exist, whose flower is never pollinated in order to produce the small semi-woody fruit containing the seeds. However, these plants propagate very quickly due to vegetative fragments: even a small part of the stem, if released into the water, will quickly develop roots on the bottom and will colonize a new body of water without problems. Agamic multiplication is therefore the fastest and safest method of reproduction for this species.
The rhizomatous roots of this plant guarantee an excellent spread of the species, allowing the plant to widen its range of action.

Lagarosiphon major: Pests and diseases

The Lagarosiphon major live completely submerged, therefore difficult to attack by insects; no disease attacks these aquatic pests in a worrying way.


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