Oncidium Orchid

Oncidium is a large genus of over 700 species of orchids found growing from southern Florida to Argentina. The name comes from the Greek word “onkos; tumor or swelling,” and refers to the warty growths on the lip.

Oncidium Orchid
Oncidium Orchid

While the size of the plants and the requirements for care vary greatly, most Oncidium orchids are epiphytic. Since they prefer to have their roots exposed to the air, let the roots hang over the edge of the pot. On some species, the flower sprays are over ten feet long. The long-lasting flowers are usually shades of yellow and brown with occasional touches of other colors. Some look like dancing dolls, and others look like showers of gold.

Oncidium orchids adjust well to indoor living. Generally, they prefer cool to intermediate temperatures, full sun, and plenty of water while they are actively growing. Keep them bone dry for two to six weeks after they finish growing and give them another rest period after flowering.

There are many small Oncidiums that like it warm and grow easily under lights. Some have flower sprays four to six feet long. It may be necessary to move the plant foliage out of the way so the flower sprays can get light when the plant begins to bloom.

Orchid Types

Anguloa Uniflora OrchidLycaste Orchid
Anota violacea, Rhynchostylis violacea OrchidMaxillaria Houtteana Orchid
Ascocentrum Curvifolium Orchid
Miltonia Orchid
Brassavola Orchid
Odontoglossum Orchid
Bulbophyllum Lobbii Orchid
Oncidium Orchid
Cattleya Orchid
Paphiopedilum Orchid
Chysis Laevis Orchid
Phalaenopsis Orchid
Cycnoches Loddigesii Orchid
Pleurothallis Orchid
Cymbidum Orchid
Renanthera Brookie Chandler Orchid
Dendrobium Orchid
Rhynchostylis Coelestis Orchid
Doritis Orchid
Rodriguezia Secunda Orchid
Epidendrum Orchid
Sophronitella Violacea Orchid
Laelia Orchid
Stanhopea Orchid
Lokhartia Oerstedii Orchid

Vanda Orchid

Learn how to grow orchids: