Not the plant you're looking for? Search over 300,000 plants
Conservatory Greenhouse

Dendrobium densiflorum

pineapple orchid

A medium-sized, evergreen, epiphytic orchid with cane-like, fleshy, green upright pseudobulbs up to 60cm long. Four to six dark green, leathery, glossy leaves are arranged along the upper nodes and near the top of each pseudobulb. Each lance-shaped leaf is 10-15cm long and 6-7cm wide. Pendant, densely-flowered racemes emerge from the axils of leaves in winter and spring. Short-lived flowers are bright yellow, 5cm large with rounded lip with darker yellow-orange centre.

Ultimate height
0.5–1 metres
Time to ultimate height
5–10 years
Ultimate spread
0.5–1 metres
Growing conditions
Colour & scent
Spring Green Grey Silver Yellow Orange Green
Summer Green Grey Silver Green
Autumn Green Grey Silver Green
Winter Green Grey Silver Yellow Orange Green
  • Partial shade
  • Full sun

East–facing or South–facing or West–facing

Botanical details
Native to the UK
Evergreen or Semi evergreen
Clump forming, Columnar upright

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


Plant range
Assam, Himalaya, SE Asia and Indochina

Advertise here

How to grow


Plants are best grown in a pot in an epiphytic, medium grade, bark-based potting mix with added 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. It is a cool to warm-growing orchid with average temperatures between 16-25°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. Reduce watering and feeding until warmer temperatures initiate new growth in spring. See indoor orchid cultivation


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

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.


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


Generally disease-free.

My Garden

Your free RHS gardening coach

Keep track of your plants with reminders & care tips – all to help you grow successfully

My plants
My calendar

My plants

My calendar

My ideas
Manage membership

My ideas

My advice

Get involved

The Royal Horticultural Society is the UK’s leading gardening charity. We aim to enrich everyone’s life through plants, and make the UK a greener and more beautiful place.