About
An evergreen, epiphytic orchid with sword-shaped leaves to 50cm long. Produces clusters of 11-15 flowers, with dark red sepals and petals and crimson red lips, from late autumn to early summer.
About the genus
A hybrid genus of orchids used for greges (plural of grex) which contain at least one ancestor species from the genera Oncidium and Rhynchostele
Growing conditions
SunlightFull sun, Partial shade
Soil pHAcid, Neutral
Soil moistureWell-drained
AspectSouth-facing, West-facing
ExposureSheltered
UK hardinessH1B
Plant details
Plant typeHouseplants
HabitClump forming
FoliageEvergreen
Height0.5-1 metres
Spread0.1-0.5 metres
Time to full height2-5 years
Suggested usesHouseplants
Care notes
CultivationGrow indoors in an open, free draining bark-based orchid compost in bright, filtered light, with a minimum night time temperature of 10°C (50°F). In summer, provide high humidity and water freely; water sparingly in winter. See indoor orchid cultivation and oncidium orchid (cool) cultivation for more detailed advice
PruningRemove spent flowering stems
PropagationPropagate by division after flowering in spring, when the plant outgrows the container
Pest resistanceMay be susceptible to aphids, mealybugs and red spider mites
Disease resistanceGenerally disease-free