Water hyacinth - care

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The floating on the water surface water hyacinth enchants with its delicate purple flowers in the summer months, the heart of every garden pond lover. It is easily recognized by its rich green leaves, at the base of which there is a globular thickening filled with air and holding the plant on the surface.
Location for water hyacinths
The Water Hyacinth loves stagnant water with direct sunlight. The higher the temperatures, the better the plant feels. Shady places in the garden pond are unsuitable as a location. With continuous at least 15-20 degrees Celsius and good nutrient content in the water it drives from June to September lush flower stems with a height of 15 to over 30 cm.
Water hyacinths are floating plants. The garden pond must be so deep that the roots can spread unhindered. Therefore, they thrive in regions with at least 20 cm of water depth, 30-50 cm are optimal. In exceptional cases, they can also be rooted in shallow shore regions with at least 10 cm water depth in the silt. Here, however, should be very careful that they do not spread too much, because otherwise other plants are quickly overgrown.
Water hyacinth - care
The water hyacinth is a rather robust plant and usually requires no special care. If it has enough light, warmth and nutrients throughout the development period, it starts to grow in June and decorates the garden pond with light purple or blue flowers. It almost never falls ill or is attacked by pests outside the tropics. Only cold and insufficient light conditions can seriously endanger their growth or even force them to die.
Although water hyacinths grow and reproduce quickly at suitable locations, individual specimens still look lonely in the large garden pond. Therefore, they should be introduced in groups of about three to five plants. However, it is not advisable to use too many plants. As a rule of thumb: about two to three plants per square meter pond area.
Buy water hyacinths for the garden pond
Many of the commercially available plants come directly from tropical areas. They were brought to Germany from their warm home in April. If the plant survives this temperature shock, it usually needs the whole summer to recover from it and then does not bloom again this year. However, if you do not want to give up flowering from the start, you should use plants that have been propagated here.
A good tip may be to ask your neighbor or friends who have water hyacinths in their pond. You will be happy to hand in some of your copies in the summer or fall.
Well-known and popular species of water hyacinth

  • thick-stemmed water hyacinth
  • azure water hyacinth
  • non-uniform water hyacinth
  • many other subspecies
Fertilize water hyacinths
The plant needs many nutrients. This takes them over the pond water. For this reason, the water hyacinth is the ideal choice to free the garden pond from the excess supply of nutrients or toxins and to curb sustainable algae growth. Normally she does not need additional fertilizer. In principle, it is not advisable to fertilize the garden pond or its plants, because instead of a lush plant growth you have only an enormous algae plague in the pond.
Water hyacinths multiply and hibernate
Although pollination by insects takes place in the heyday, the water hyacinth is increased by foothills. On the mother plant small young plants form on the leaf rosettes, which reach a considerable size after only a few days. After about 5-8 days they can easily be separated from the mother plant.
The tropical water hyacinth is very sensitive to frost. It does not survive cold winters in local regions. Therefore, it is time from the end of October to relocate them to their winter quarters:
  • For this, some particularly strong and robust-looking plants are selected.
  • The plant is freed from dead leaves and flowers.
  • A vessel about 20-30 cm high is ideal for hibernation.
  • In addition to water, humus, loamy soil is also filled for the nutrient supply.
  • The vessel should be opaque.
  • Temperatures of 15-20 degrees Celsius and lots of light are required in winter.
  • As a location is well suited a place on the windowsill.
  • Here it will remain until about mid-May of the following year.
Another alternative is wintering in aquariums. Here are only upwardly open aquariums with heating. With closed variants, the plant quickly gets too hot under the light source on the underside of the cover. If the plant dies in the aquarium, this is in most cases due to lack of light, because the water hyacinth likes bright even in winter. External aquarium emitters are ideal for this purpose.
Cut water hyacinths
If the plant goes well, it sometimes even grows quite uncontrolled and makes other plants rigorously nutrients and space in the garden pond disputed. Since it has no natural predators, in extreme cases, it can double its area within two weeks. Once it has conquered the whole pond for itself, it comes in the lower regions quickly to lack of light for the underwater family. The oxygen supply is prevented and the fish die. The remedy is simple: the gardener can simply scavenge the plants in excessive propagation, cut off parts of it and dispose of it on the compost. The remaining plants will be used again.
Worth knowing about water hyacinths soon
Water hyacinths are suitable for the garden pond due to their uncomplicated and robust nature. However, they place high demands on the temperature and lighting conditions. If you get enough warmth and sun, you will thank for it with healthy growth and beautiful light purple flowers.
  • Water hyacinths are herbaceous, floating aquatic plants. They tend to overgrow and displace other species.
  • The higher the nutrient content in the water, the more lush the plants will bloom. The water depth should be at least 20 cm.
  • Caution: They multiply very strongly and can cause waters to silt up.
  • They have no predators and multiply in numbers.
  • Water hyacinths love standing, at least 20 degrees Celsius warm and sunny waters.
  • A positive effect of water hyacinth in nature is that it releases the water in which it lives from toxins.
  • Water hyacinths are mostly perennial plants. In Europe, it is mainly used as an ornamental plant for garden ponds.
The leaves are all formed on the sprout base, usually only over water. The plants drift with thick swollen, inflated petioles. They act as a swim bladder. The water hyacinth can also root in the silt. The inflorescences consist of up to 30 flowers, similar to the garden hyacinths. Most blue flowers are hermaphroditic. The pollination is done by insects. The flowering period is from June to September. The flowers are a feast for the eyes in every garden pond.
Water hyacinth is becoming more abundant through the separation of foothills or daughter rosettes. Under suitable conditions, these reach the size of the mother plant after only five to eight days. Propagation by seeds rarely occurs.
In Germany, the water hyacinth has become a deco hit. Especially in glass vessels like vases they are especially decorative. Near-natural and fresh decoration ideas are in. In addition, from the stems of the plant the popular wickerwork is obtained, from which the most diverse vessels and furniture are made.

Video Board: Water Hyacinth upkeep.

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