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Paphiopedilum sukhakulii

Sukhakul’s paphiopedilum

A small-sized, evergreen orchid species with narrow, elliptic leaves, with tesselated dark and pale green pattern. Solitary flowers, 10-14cm across, appear from the centre of the leaf rosette and are carried on 13cm long, upright stems. The pouch (or slipper) is a modification of the lip that traps insects and consequently provides an ''escape route'' that results in pollen collection and flower pollination. The lateral sepals are fused, mostly hidden behind the pouch. Petals are lime-green with numerous brown spots. The upper sepal is white, with lime-green stripes.

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Size
Ultimate height
0.1–0.5 metres
Time to ultimate height
5–10 years
Ultimate spread
0.1–0.5 metres
Growing conditions
Moisture
Well–drained
pH
Neutral
Colour & scent
StemFlowerFoliageFruit
Spring Brown Green White Green
Summer Green
Autumn Green
Winter Brown Green White Green
Position
  • Partial shade
Aspect

East–facing or South–facing or West–facing

Exposure
Sheltered
Hardiness
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

Correct

Plant range
NE Thailand

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.

Pests

Generally pest-free. May be susceptible to mealybugs.

Diseases

Generally disease-free. Overhead watering in combination with low temperatures may cause bacterial rots in the centre of leaf rosettes.

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