Vanda orchids species

The various species of Vanda orchids

Vanda orchids are a botanical genus belonging to the Orchidaceae family. They originate from Eastern countries such as China, Malaysia and Indonesia, India and Australia. There are about 80 species of these typically epiphytic plants. They are divided into species with ribbon-like leaves and species with cylindrical leaves. Among the former, the best known are: Vanda sanderiana, Vanda coerulea, Vanda tricolor, Vanda dearei, Vanda merrillii and Vanda luzonica. Among the latter, the most common are Vanda teres and Vanda hookeriana. Those with ribbon leaves are the species that are best suited for growing indoors. In summer they need sunlight in the morning and shade at other times of the day. Cylindrical leaf orchids also need a lot of sun but need to be grown outside.

Vanda orchids: general characteristics

Vanda orchids have thick fleshy roots that develop in the air and are suitable for hanging wooden baskets. The plant can flower, for several weeks, three or four times a year, particularly between spring and the beginning of the summer season. The inflorescences produce 10-12 flowers, sometimes pleasantly scented, with open and similar sepals. The petals have the same shape and the labellum has a spur, trilobed and of different shapes, according to the species. Almost all types of Vanda love direct sunlight and can generate lateral shoots, which then give rise to new plants that develop independently, once their roots have been produced. These orchids are also grown as cut flowers, as well as an ornamental houseplant.

Ideal temperatures and watering of the Vanda

Ideal growing temperatures during the summer are 28-30 degrees during the day and 20-25 degrees at night. During the winter season the temperature must be between 15 and 18 degrees during the day and between 12 and 14 degrees at night. In this way the orchid growth will be constant. Lower temperatures, on the other hand, interfere negatively. It is also necessary to ensure good ventilation for the plant. A scarcity of sunshine causes non-flowering. During the spring and summer the Vandas need to be watered every day. During the rest of the year, just water enough to keep the roots moist. Watering should be done in the morning, to ensure that the leaves have time to dry until the evening. Sprays with non-calcareous water are also necessary,

Vanda orchids species: Fertilization and soil for the Vanda orchid

In spring, when Vanda orchids are at their peak growth, fertilization is needed once a week. At other times of the year it is sufficient to do it every 15 days or so. It is good to use fertilizers with formula 20:20:20 based on nitrogen, potassium and phosphorus, in the amount of one gram for each liter of water. A 10:30:20 ratio will help achieve monthly flowering. To avoid an excessive concentration of mineral salts, orchids must be watered abundantly with water only once a week. Furthermore, fertilization must always be carried out with wet soil which must never dry out completely. The substrate for the Vanda consists of pine bark (bark) or charcoal, gravel or pumice. The perfect combination involves bark, charcoal and pumice combined in equal parts.

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