× Oncostele Midnight Miracles gx 'Masai Red'

RHS Plant Profile

oncostele Midnight Miracles gx 'Masai Red'

Houseplants

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

Position

Full sun, Partial shade

Max Height

0.5-1 metres

Max Spread

0.1-0.5 metres

Size

Time to Maturity: 2–5 years
Max Spread: 0.1-0.5 metres
Max Height: 0.5-1 metres

Growing Conditions

Moisture: Well–drained
pH: Acid or Neutral

Position

Full sun Partial shade

Aspect: South–facing or West–facing
Exposure: Sheltered
Hardiness

Hardiness Ratings

All ratings refer to the UK growing conditions unless otherwise stated. Minimum temperature ranges (in degrees C) are shown in brackets

H1A: under glass all year (>15C)
H1B: can be grown outside in the summer (10 - 15)
H1C: can be grown outside in the summer (5 - 10)
H2: tolerant of low temperatures, but not surviving being frozen (1 to 5)
H3: hardy in coastal and relatively mild parts of the UK (-5 to 1)
H4: hardy through most of the UK (-10 to -5)
H5: hardy in most places throughout the UK even in severe winters (-15 to -10)
H6: hardy in all of UK and northern Europe (-20 to -15)
H7: hardy in the severest European continental climates (< -20): H1B

Colour & Scent

Season	Stem	Flower	Foliage	Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family: Orchidaceae
Native to GB/Ireland: No
Foliage: Evergreen
Habit: Clump forming
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
Name Status: Unresolved

How to Grow

Cultivation

Grow 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

Propagation

Propagate by division after flowering in spring, when the plant outgrows the container

Suggested planting locations and garden types

Houseplants
Conservatory and greenhouse

Pruning

Remove spent flowering stems

Pests

May be susceptible to aphids, mealybugs and red spider mites

Diseases

Generally disease-free