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The Oncidium variety of orchids are becoming very popular for ease of growing and long lasting sprays of small, distinct flowers which often have unique color combinations and a pleasant fragrance. They will typically bloom once a year and can be grown in the home, as well as in a sheltered area in the garden. Oncidiums have been combined with Odontoglossum and other related orchid types through hybridizing to offer a seeming endless array of striking color patterns.

Temperature: Most Oncidiums and their hybrids enjoy intermediate temperature ranges: 75-85 degree F. day & 60-65 degreee F. at night.

Light: Most Oncidium and their hybrids prefer filtered, subdued light (from 1000 to 1500 ft. candles). The Oncidiums prefer bright light.The leaves should be bright green as opposed to dark green or reddish green. Reddish green indicates too much light; dark green indicates not enough light.

Water: Oncidiums should become moderately dry between waterings. Generally, they require more water while the new shoot is growing and less once the bulb has formed. Fertilize your plants at least once a month. Take care to keep water out of the new growth at the base of the plant. Never allow the bottom of the pot to stand in water. Never use artificially softened water.

Humidity: Oncidiums enjoy moist air, requiring a minimum of 40-50% humidity in the immediate vicinity of the plant. Humidity should be increased with higher temperatures. The ideal humidity is between 55 and 75%, with as much ventilation or air movement as possible without any cold drafts. Humidity can be increased around the plant by placing the pot on an inverted saucer in a baking pan filled with pebbles, rock chips, etc., and water. Keep water level below top of pebbles so that the plant will not have "wet feet" from setting in water. Morning misting of foliage is also helpful, especially during periods of hot weather.

Potting: Repot Oncidiums at least every two years. As a general rule, repot them when the new shoot is two to three inches tall or when new roots appear. All the old mix should be removed from the roots and any dead roots should be removed. If dividing, keep the divisions in clumps of three to five mature bulbs. Medium to fine fir bark is preferred. The base of the new growth should be potted about 1/2" (no deeper) into the fresh bark. Keep mix barely damp until you see the new roots penetrating the bark, then resume normal watering.


1. When you first receive your Oncidium choose a spot for it and move it from that spot as little as possible.

2. Once the plant gets acclimated to a certain location, they tend to stay the healthiest when left in one spot.

3. After you receive the plant wait 10-12 days before watering it, after the first watering, water it once a week. When watering is complete, ensure that all the residual water has drained from the bottom of the pot before replacing it in its decorative container.

4. It is normal for the leaves and stem of the plant to have a "bent" almost drooping look. This is natural with all Oncidium and will by no means shorten the life of the plant.


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