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Conservatory GreenhouseHouseplants

× Oncostele Midnight Miracles gx 'Masai Splash'

Evergreen epiphytic orchid to 60cm tall with broad ovoid pseudobulbs bearing mid-green, sword-shaped leaves and from late autumn to early summer produces racemes of up to 15 dark red flowers with red-centred, white-margined lips, the red markings vary with temperatures during flower formation

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Ultimate height

0.5–1 metres

Time to ultimate height

2–5 years

Ultimate spread

0.1–0.5 metres

Loam

Moisture

Well–drained

pH

Acid, Neutral

	Stem	Flower	Foliage	Fruit
Spring
Summer
Autumn
Winter

Partial shade

Aspect

East–facing or North–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)

H1A

Botanical details

Family: Orchidaceae
Native to GB / Ireland: No
Foliage: Evergreen
Habit: Tufted
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 in bark-based epiphytic orchid compost in small pots. Provide bright filtered light, good ventilation and in spring and summer water freely as compost dries out, use half strength orchid fertiliser at every third watering and mist regularly for high humidity. Reduce watering in winter and provide good light levels

Propagation

Propagate by division when plants are large enough to be divided into clumps of 2 - 3 pseudobulbs and overflowing the pot

Suggested planting locations and garden types

Houseplants
Sub-tropical
Conservatory and greenhouse

Pruning

No pruning required, remove spent flower spikes

Pests

May be susceptible to aphids, mealybugs and glasshouse red spider mite

Diseases

Generally disease-free

Get involved

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