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Paphiopedilum Rosy Dawn gx 'Superbum'

A semi-terrestrial, clump-forming, evergreen orchid with narrowly-oval leaves, 20-30cm long. Solitary flowers, 7-10cm across, appear from the centre of the leaf rosette and are carried on 15-30cm long, upright stems. The pouch (modification of the lip) is pale yellow or pale pink. Petals are narrowly elliptic, pale yellow or pale pink with dark dots around the centre of the flower. Upper sepal is white, spotted around the centre.

Synonyms

Paphiopedilum superbum 'Rosy Dawn'

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Ultimate height

0.1–0.5 metres

Time to ultimate height

5–10 years

Ultimate spread

0.1–0.5 metres

Moisture

Well–drained

pH

Neutral

	Stem	Flower	Foliage	Fruit
Spring
Summer
Autumn
Winter

Partial shade

Aspect

East–facing or North–facing or 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)

H1A

Botanical details

Family: Orchidaceae
Native to GB / Ireland: No
Foliage: Evergreen
Habit: Clump forming
Genus: Paphiopedilum are mainly terrestrial, and lithophytic or epiphytic. They lack pseudobulbs and produce short stems with strap-shaped leathery leaves. Each shoot ends in a solitary flower or racemes of 2-8 flowers each with a distinctive variably-shaped lip or pouch
Name status: Accepted

How to grow

Cultivation

Grow in terrestrial, bark based orchid mix, with added sphagnum moss and perlite, or crushed limestone chips. In summer, provide higher humidity and bright, filtered light. Average summer temperatures are between 20 - 25°C, with winter temperatures falling to 18 - 22°C. Apply fertiliser with every third watering. Avoid heavy misting or overhead watering. As the plant lacks pseudobulbs, it shouldn't be left dry for long time. Water plant as it approaches dryness, but avoid standing in water, or keeping wet for prolonged period. See Paphiopedilum cultivation for more detailed advice.

Propagation

Propagation 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 healthy, rooted plant rosettes with a suffient amount of stored energy and water, to support new growth and reduce stress after repotting.

Suggested planting locations and garden types

Houseplants
Conservatory and greenhouse

Pruning

No pruning required. Remove the flower stem after flowering.

Pests

May be susceptible to mealybugs but generally pest-free.

Diseases

May be susceptible to bacterial rots in the centre of leaf rosettes caused by overhead watering in combination with low temperatures but generally disease-free.

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