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Dendrobium Hewitt Glow gx

rock orchid 'Hewitt Glow'

A medium-sized, evergreen or semi-evergreen, clump-forming orchid with 40-50cm long, upright stems (pseudobulbs). Noded stems are covered with thin, leaf-bearing sheaths. Four to six lance-shaped, dark green leaves are arranged on the upper half, or near the top of each stem. Upright flowering stems up to 30cm long emerge from the axils of leaves and the tip of mature pseudobulbs and carry 12-15 pale yellow, 3-4cm large flowers

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 Green Grey Silver Yellow White Pink Green
Summer Green Grey Silver Green
Autumn Green Grey Silver Green
Winter Green Grey Silver Green
Position
  • Full sun
  • Partial shade
Aspect

East–facing or South–facing or West–facing

Exposure
Sheltered
Hardiness
H1C
Botanical details
Family
Orchidaceae
Native to GB / Ireland
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

Accepted

How to grow

Cultivation

Plants are best grown in a pot in an epiphytic, medium grade, bark-based potting mix with addition of sustainably sourced perlite, moss, or coir. As with many orchids, they grow best when the roots are slightly restricted. Therefore, avoid over-potting or frequent root disturbance. Provide dappled shade and higher humidity in spring and summer, then move the plant to a bright, but cool room in autumn and winter. Reduce watering and feeding until warmer temperatures initiate flowering and new growth in spring. 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
  • Houseplants
  • 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

Get involved

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