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Dendrobium nobile Hybrid white
Dendrobium nobile hybrid

Did you know...

Dendrobium anosmum can produce hundreds of raspberry-scented purple flowers from its pendant 3 metre stems'

Dendrobium

(pronounced den-DROH-bee-um )

The genus Dendrobium has over 1,200 species and is geographically distributed the generally the same as Coelogynes but extend further south into Australia. Like Coelogynes they can be divided into cool and warm growing species.

Dendrobiums are usually recognised because of their long cane-like pseudobulbs. Some are deciduous resembling dead twigs when dormant but from which miraculously are produced the most amazing brightly coloured flower sprays. Others are evergreen and make handsome plants all year round.

Dendrobium hybrids have become popular as house plants. However you must be careful to distinguish between the warm and cool growers. Cool growers include what are often described as “nobile” types and include the wonderful species Dendrobium nobile and it’s hybrids. These typically produce their flowers close to the canes. Recommended cool growing species for beginners include D. nobile, D. thyrsiflorum, D. kingianum, D. densiflorum, D. loddigesii and D. delicatum.

The warm growing species and hybrids are often referred to as “Phalaenopsis” types and these are typically more colourful than the nobile types and produce numerous short flower sprays arising out from their canes. These include the beautiful species D. phalaenopsis and the rather rudely named D. biggibum both ofwhich have been a mainstay of hybridisation.

Dendrobium gallery  View pictures of Dendrobiums

Temperature

CoolNight temperatures of between 10° and 12°C with a daytime rise of about 10°C. and warm Night temperatures between 14° and 16°C with a daytime temperature rise of about 10°C. depending upon the species. Cool species should not have winter nights above 12°C otherwise they may not flower.

Light 

High (bright indirect). Keep them in as bright a position as possible during the winter to encourage flower budding.

Watering

Plentiful during the summer but given sparingly after the long cane-like pseudobulbs have fully fattened in the autumn. Many species prefer a complete rest from watering in order to trigger flowering in the spring.

Feeding

Moderate.