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Conservatory Greenhouse

Dendrobium infundibulum

small funnel-lipped dendrobium

A medium to large-sized, tropical epiphytic orchid with long, cane-like stem. Each stem can be up to 100cm long, covered in alternate, think, leaf-bearing sheaths with dense, black short hairs. Leaves are dark green, narrowly-oval, 8-13cm long. Short flowering stems emerge from the upper nodes of mature canes, bearing two, 8-10cm large flowers. Petals and sepals are white, lip is white with round, yellow or orange spot at the throat.

Size
Ultimate height
0.5–1 metres
Time to ultimate height
5–10 years
Ultimate spread
0.5–1 metres
Growing conditions
Moisture
Well–drained
pH
Neutral
Colour & scent
StemFlowerFoliageFruit
Spring Green Black White Yellow Green
Summer Green Black White Yellow Green
Autumn Green Black Green
Winter Green Black Green
Position
  • Partial shade
  • Full sun
Aspect

East–facing or South–facing or West–facing

Exposure
Sheltered
Hardiness
H1A
Botanical details
Family
Orchidaceae
Native to the UK
No
Foliage
Evergreen or Semi evergreen
Habit
Clump forming, Columnar upright
Genus

Dendrobium are epiphytic and terrestrial orchids with elongated, stem-like pseudobulbs bearing linear to ovate leaves. Racemes or panicles of showy flowers are produced from nodes along the stems mainly in spring

Name status

Correct

Plant range
Burma, Thailand

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How to grow

Cultivation

Plants are best grown in a pot in an epiphytic, medium grade, bark-based potting mix with added perlite, moss, or coir. It is best to stake each cane to keep the upright form when potted. If grown in a basket, the plant will develop more pendulous form. As with many orchids, they grow best when the roots are slightly restricted. Therefore, avoid over-potting or frequent root disturbance. It is a warm-growing orchid and the temperatures should not drop below 16°C. It can be grown similarly to Moth Orchid (Phalaenopsis) but requires much brighter conditions. Provide indirect light and higher humidity by misting regularly in spring and summer, then move the plant to a bright, room in autumn and winter. Water approximately once per week, ensure that roots dry-out between the waterings, especially in winter. See indoor orchid cultivation

Propagation

Propagation by seed is only possible in controlled laboratory environment. Mature plants may be divided when the plant overgrows the pot. Sideshoots (keiki) may develop on older canes - remove and pot them into sphagnum moss when the new roots are at least 2cm long.

Suggested planting locations and garden types
  • Conservatory and greenhouse
Pruning

No pruning required. Remove spent flowers as necessary, but do not cut the whole cane unless completely shrivelled. Oldest canes may be removed as long as there are enough, younger, thick, leaf-bearing canes on the plant.

Pests

May be susceptible to scale insects, aphids, mealybugs and red spider mite.

Diseases

Generally disease-free.

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