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This page is meant to give you information and some useful tips about the care of the Oncidium. You will also find all the Oncidium species we offer in our assortment.

» Straight to care

Derivation of the name

The name of this gender derives from the Greek word ‘onkos’ (swelling), which refers to the thickening on the lip.

Features and origin

Oncidium is a gender with around 325 species spread throughout the North of Mexico, the Caribbean and in the South of Florida to South-America. They are predominantly epiphytes, but sometimes also lithophytes and terrestrial plants. They consist of long, flat pseudobulbs that carry one or two leaves. The flower stems are usually very long and produce many small flowers. These flowers have a remarkable, large lip and are generally yellow with or without red/brown markings. Other Oncidium have white and pink flowers, while some species even show deep red colours.

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Care tips


Oncidium need a very light space, where they are protected against direct afternoon sun. In summer, the Oncidium can be kept outside under a roof.


In summer, the temperature should be a maximum of 29.5°C and at night the temperature shouldn’t drop below 15°C.
During winter, a constant temperature around 16,5°C - 19,5°C is ideal. At night, the temperature may drop a few degrees.


We advise a humidity between 30% and 60%. This differs per species within the gender.


Keep the soil consistently humid during summer. This means that you water the plant at the moment the soil has almost dried up.
In winter, you can give the Oncidium less water.


In summer, you can fertilize the Oncidium lightly once a week. In winter, the Oncidium don’t need fertilizer.
The fertilizer is important, because there won’t be enough sunlight for the Oncidium. Normally, the sunlight provides the Oncidium with sugars that are essential to create the growth of flower branches. Therefore it’s harder for the Oncidium to start blooming without the fertilizer.


When the Oncidium starts to grow out of the pot and the roots are in their period of growth, the plant requires to be repotted in a mix of fine bark (80%), bark fraction 4 (10%) and spaghnum (10%).