Where the plant comes from Echinodorus Asherson, is sunny Brazil, primarily its eastern states, as well as Argentina and Paraguay. Aquarists have long loved this herb for its decorative appearance and relative simplicity.
The plant belonging to the family partisaceous (Alismataceae), rooted in the soil, forming an attractive, fairly dense fork of the leaves, usually from 10 to 15 pcs. It happens that leaves of non-identical forms grow from one plant. The leaves are subject to change their shape in the process of growth and development, which can be from spear-shaped to heart-shaped, and their length can reach 15 centimeters, width – from 3 to 8 cm.
Plants growing above the water have petioles of the same length as the leaf blades, while underwater petiole growing is noticeably shorter. Leaves can be reddish brown or dark / bright green.
The length of peduncles (creeping, lodging, settling in the internodes) is from 13 to 30 cm.
About 2-7 whorls have ugly, simple inflorescences, and whorl diameter with white flowers reaches 3 centimeters. Often the plant has no pedicels, or they are very short, so the flowers may be sedentary.
Well developed root system. Plant height reaches 30 cm.
The most advantageous location for Echinodorus Asherson is the foreground of the aquarium. It is recommended to maintain the water temperature in the region of 24-28 degrees Celsius, the content of hardness salts not more than 12 °, the pH level of 6.5-7.5. Be sure to filter water, otherwise with increasing environmental pollution, the sockets of the sheets may begin to shrink.
Once a week it is necessary to replace up to 20-25% of the volume of water, this will allow the plants to fully develop throughout their life.
For Echinodorus Asherson in the aquarium, it is preferable to use upper moderate illumination, which has a positive effect on the formation of an elongated leaf shape. As a source of artificial lighting aquarium, you can choose incandescent lamps or fluorescent lamps.
12 hours is the recommended light day for these tropical plants.
As for the soil, it must be nutritious and silted. A clay lump is recommended to be put under the roots, a pebble (5 cm thick) will serve as a good substrate.
Such plants are best grown in a separate pot, where it is additionally useful to add a little garden soil. Top dressing does not have to be in the form of mineral fertilizer, because nutrients and components and so will come from the soil in sufficient quantities.
If developmental delay is observed, micronutrient fertilizers can be used, they are added to the water once a month to ensure stable growth of the plants.
Plant reproduction occurs vegetatively. Flower arrows, which produces an underwater form of the plant, begins to produce additionally from 1 to 3 daughter plants.
This usually occurs in early summer, less often in late summer and autumn. The first harbingers of reproduction is the emergence of new leaves.
Each whorl will form from 3 to 5 new plants, the buds are not strongly developed. It is not recommended to touch the shooter, you just need to place the plant in the place of the aquarium, where the most intensive natural and artificial lighting. As soon as the young plant begins to form the root system, the peduncle should be pressed to the bottom so that it takes root.
From the moment of independent growth of the plant, they can be relocated or separated.
For effective initial development of the plant, a wet greenhouse would be the best option. A mixture of sand, clay, turf land and humus will serve as a pantry of nutrients and minerals.
This tropical plant prefers strong and diffused illumination, which has a beneficial effect on the appearance of long leaf cuttings and leaf development. After reaching the right size, Echinodorus Asherson can be moved to an aquarium for permanent habitat.