About
Flowering stems up to 35cm long emerge from the base of mature pseudobulbs and carry large number of small, 3cm wide, brilliant yellow flowers. A compact-growing, medium-sized, epiphytic orchid, producing a clump of small, light-green, ovoid, compressed pseudobulbs. Each pseudobulb is covered with three leafy sheaths growing at the base and two leaves growing from the tip. Leaves are green or light-green, up to 35cm long and 3cm wide.
About the genus
A genus of hybrid, deciduous flowering trees with long, tapered dark green foliage and large, frilly pink or white flowers with striped throats, appearing in the summer and autumn
Growing conditions
SunlightFull sun, Partial shade
Soil pHNeutral
Soil moistureWell-drained
AspectEast-facing, South-facing, West-facing
ExposureSheltered
UK hardinessH1A
Plant details
Plant typeConservatory Greenhouse, Houseplants
HabitClump forming, Columnar upright
FoliageEvergreen
Height0.1-0.5 metres
Spread0.1-0.5 metres
Time to full height2-5 years
Suggested usesHouseplants
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 13°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 orchids (warm section).
PruningNo pruning required. Remove the flowering stem once finished flowering.
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