About
Oncidium ornithorhynchum, the dove orchid, is a small to medium-sized epiphytic orchid producing oval pseudobulbs 3�8 cm long, each carrying two or more linear leaves 20�40 cm long. In autumn and winter, pendant stems 15�60 cm long carry dense sprays of small, pale-pink, sweetly fragrant flowers to 2 cm across. Mature plants often produce numerous flowering stems simultaneously for an outstanding display. A rewarding orchid for a cool to intermediate heated greenhouse.
About the genus
Oncidium are a large genus of mainly epiphytic orchids from the Americas producing ovoid to conical pseudobulbs and often large, branched panicles of flowers in shades of yellow, brown, pink and white. Grown in warm to intermediate heated greenhouses.
Growing conditions
SunlightPartial shade
Soil pHNeutral
Soil moistureMoist but well-drained, Well-drained
AspectEast-facing, North-facing, West-facing
ExposureSheltered
UK hardinessH1B
Plant details
Plant typeConservatory Greenhouse, Houseplants
HabitColumnar upright, Clump forming
FoliageEvergreen
Height0.1-0.5 metres
Spread0.1-0.5 metres
Time to full height5-10 years
Suggested usesHouseplants
Native toMexico to C America
FragranceFlower
ToxicitySkin allergen. Wear gloves and other protective equipment when handling
Care notes
CultivationGrow in an open bark-based orchid compost with addition of perlite, sphagnum moss or coir. Provide enough bright filtered light, but keep away from direct sunlight or a heating source. Ideal temperatures are around minimum 8°C at night and up to maximum 25 °C during day. Water regularly, when the pot feels light when lifted. Ensure that all water drains away, preventing the plant sitting wet. Orchid fertiliser can be applied regularly throughout the growing season. Reduce watering and feeding in winter months. For more notes on cultivation, see oncidium orchid (cool) cultivation
PruningNo pruning required. Cut off spent flower spikes.
PropagationPropagation by seed is only possible in a controlled laboratory environment. Mature plants may be divided when the plant overgrows its container. Each division should have at least 3 older pseudobulbs with a sufficient amount of stored energy and water, to support new growth and reduce stress after repotting.
Pest resistanceMay be susceptible to mealybugs, aphids and scale insects.
Disease resistanceGenerally disease-free. Poor air movement may cause bacterial or fungal rots. Good hygiene practice and sterilising cutting tools prevent the spread of virus diseases.