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Orchidea Vanda

Vanda orchid

Belonging to the Orchidaceae family, the genus Vanda includes about eighty species that originated in the Malay archipelago, Australia, China, Indonesia and India. The name they take comes from the Indian language which means “pleasing to people for their shape, fragrance and color”. These types of orchids do not have pseudobulbs, they are the most epiphytes that exist and sometimes they are also monopodial lithophytes. The leaves of these plants can have different shapes and, depending on the formation, are classified into three groups: the Vanda with cylindrical leaves, the Vanda with flat ribbon leaves and the Vanda with intermediate leaves. The roots of these plants are fleshy and large and arise from the stem, they are rarely branched. The flowering of Vanda orchids can occur at any time of the year but there are greater chances that it occurs in the spring and in the summer. The inflorescences produce a variable number from 10 to 15 small flowers, they are spike and last several weeks. The small flowers of these plants have sepals that are all the same and very open, the petals have the same shape as the sepals, the labellum instead varies the shape according to the species to which they belong.

Cultivation


Vanda orchids are plants that grow continuously throughout the year. If the climatic conditions are adequate for their needs, they are able to flower even 3/4 times a year and the blooms are quite abundant. They love the light and above all they love to be exposed to direct sunlight, some plants can withstand the sun’s rays even for the entire duration of the day. Most Vandas are plants that grow at high temperatures and with a lot of humidity. The ideal temperatures for these types of orchids in the summer are around 28 – 30 ° C during the day and between 20 – 25 ° C at night. In winter, however, temperatures are around 15 – 18 ° C during the day and between 12 – 14 ° C at night. With these temperatures they grow throughout the year and bloom several times. What they do not tolerate are low temperatures for too long periods. As far as irrigation is concerned, the Vanda need frequent watering and humidity in the air of the environment in which they grow. If they are grown in suspended baskets (classic of these orchids), watering must be done daily during the spring and summer period. It is advisable to water these plants always in the early hours of the day in order to dry out for the evening. If they are grown in suspended baskets (a classic of these orchids), watering must be carried out daily during the spring and summer period. It is advisable to always water these plants in the early hours of the day in order to dry out for the evening. If they are grown in suspended baskets (classic of these orchids), watering must be done daily during the spring and summer period. It is advisable to water these plants always in the early hours of the day in order to dry out for the evening.

Soil and repotting

Vandas do not like repotting very much since they are plants with a monopodial development and do not need similar practices. Repotting should be done when we realize that the plant has become too big and needs more space. The ideal arrangement for these plants are the hardwood slatted baskets that allow the roots to stay free and breathe. In case we want to repot the plant, so as not to annoy it too much, we can put the plant with the whole container in which it is placed in a larger container, without it being removed from the original one. In this way, by adding to the whole some wood charcoal or bark between one pot and the other, the plant will not feel any kind of change. If, on the other hand, the repotting must be carried out because the container is damaged or rot has formed, to reduce stress to the plant, we could immerse the roots in warm water in order to make them more elastic and not to suffer damage during the change. The best time to repot is in late spring and early summer. Once the repotting operation has been completed, the Vanda should be kept in shaded areas until they have stabilized.

Curiosity

Vandas prefer to be grown in hanging wooden baskets so that the roots are free to move. They don’t like too much soil in the basket, on the contrary, they need regular moisture and fertilizing throughout the year. As for the fertilizations, the Vanda must be fertilized once a week during the spring and during the summer, the period in which they grow more. In autumn and winter, they must be fertilized once every two weeks. Considering the fact that Vanda orchids often bloom throughout the year, the use of fertilizer with higher quantities of nitrogen than the other elements should be avoided. It is advisable to respect the balanced formula of the 20:20:20 type, i.e. 20 parts of Nitrogen, 20 parts of Phosphorus and 20 parts of Potassium. The doses to be administered to these plants are 1 gram of fertilizer for a liter of water. It is important to know that fertilizations must be carried out with the substrate wet in order to avoid an excessive concentration of mineral salts.

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