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The flower colors are often very strong and an absolute eye-catcher. It is therefore also considered the "queen of flowers".
Distribution and propagationBecause of their enormous diversity, orchids grow in almost all areas of the earth. The only exceptions are the Antarctic and deserts. These very extreme climates do not suit even the most robust orchid. Most species prefer a very warm and humid climate, so the majority of orchid species are found in the tropics or subtropical climates. But even in Europe there are about 250 species.
Most orchids multiply by pollination with the help of insects. Individual species multiply by the formation of stolons, nannies or tubers (colloquially called offshoot). The offspring of these plants are then genetically identical to the mother plant.
Many orchid species are epiphytic species. This means they grow on other plants but are not parasites. They use the other plant only as a carrier to hold their aerial roots.
A little historyOrchids have been known to humans for over 2500 years. Even the Chinese philosopher Confucius praised her appearance and her fragrance. In Chinese garden art, the orchid stands for love and beauty, but also for a young girl.
The oldest European traditions date back to 372 BC. Back.
Orchids were used for many purposes: as medicinal plants or as an aphrodisiac. Like nowadays she has always been used as a decoration.
Orchids as houseplantsAs indoor plants, only the epiphytic species are used. So you do not need soil in their pots. If one were to plant an orchid in household potting soil, the aerial roots would rot in a very short time.
Orchids are planted in a special substrate, which allows the aerial roots to hold on, but also ensures good air permeability.
Epiphytes cover their water needs from the air, because the roots do not protrude into the ground. Therefore, they require a relatively high humidity, which is why the tropics are a preferred habitat.
Indoor plants should therefore be regularly sprayed with soft water. Rainwater is best for this purpose. If you only get hard water from the pipe, you can dilute it with demineralised water. You can get this in every hardware store.
Leaf loss and discolorationLeaves that turn yellow and fall off or even deciduous green leaves can have different causes in an orchid.
Many species of the genus Dendrobium, Calanthe and Pleione regularly lose their leaves completely after the end of the growing season.
The common in households Phalaenopsis or even in the Art Vanda, a leaf from time to time yellowish, which belongs to the life of the plant. Rarely, two colors at a time.
If the sheet shedding is not normal, this can have different reasons.
The species Vanda, Ascocentrum and all species directly related to them could be affected by a fungus. These infest the tracks from below, causing the sheet shedding. In some cases, the plant then forms roots in the upper area, from which one can make so-called head cuttings. Without them, the plant can no longer be saved and can only migrate into the compost bin.
In phalaenopsis, leaf loss is usually due to the way it is raised. It is raised in a quick process with a lot of fertilizer and under optimal climatic conditions. This minimizes costs and makes the plant very cheap on the market. As a result, the plant grows quite satisfactory for one to two years, but then comes a small slump. Up to three or four leaves turn yellow, long time, no new leaves are added. Repotting does not change this situation. With much patience you can often save the plant. For this she has to stand warm and bright. In the summer every two weeks it needs a shot of fertilizer for orchids, all other two weeks good nitrogen fertilizer. It is important to dilute these fertilizers as they are sold highly concentrated. Flowers that form during this time should be removed immediately. It may take two to three years for the plant to form the first leaves.
The failure of leaves can also be due to lack of light. This does not lead immediately, but in the long term, that the plant throws off its leaves. In addition, the plant becomes more susceptible to pests.
If an orchid is in the substrate for more than two to three years, it may also lose its leaves. The plants should therefore be repotted regularly. If you do not do that, root damage can occur in the orchid, causing it to lose its leaves. In addition, mosses and algae can get into the substrate when it gets too old.This compacts thereby and reduces the supply of oxygen in the plant.