Vanda is a genus of mostly epiphytic orchids, sometimes terrestrial.
They are found in tropical forests from the southern Himalayas, in India, to northern Australia where they grow up trees where the bare roots absorb rainwater and dew.
They are mainly grown for their flowers and sold as cut flower or plant in a glass vase, without substrate. While it’s beautiful, it is not the best way to grow them.
They are difficult to grow indoors as they require a lot of light, heat and high humidity.
The type species is Vanda tessellata.
Vanda are monopodial and do not have a bulb. The size varies from miniature orchids to plants of several meters long. Epiphytic species have long fleshy intertwined roots.
The foliage varies greatly depending on the climate. The leaves are usually tough and drought resistant.
The inflorescence is lateral. The flowers are usually white or yellow-brown, green, orange, red, burgundy. Some species are almost blue or rather a bluish purple.
Flowering may occur several times a year, at any time of the year : most Vanda do not have a marked period of rest. Flowering lasts 2-3 weeks.
Vanda: from the Sanskrit name
Diurnal: 25-27 °C, nocturnal: 15 °C. Generally they tolerate temperatures exceeding 30 °C.
They usually need a lot of light but no direct sun during the hottest hours in summer as this will burn the leaves.
As the roots are bare, they need daily misting. They may also be bathed.
The Vanda grows bare rooted, in an open basket or suspended from a wire. You may add a little moss to retain moisture.
They are commercially available in glass vases which is not suitable for cultivation.
Specialized orchid fertilizer, every two weeks during growth
- Vanda: Own work