Coelogyne



Coelogyne is a genus of orchids that includes both terrestrial as well as epiphytic species. There are about 150 species of Coelogyne in the world, and they are found across Asia, from the Himalayas and South China all the way to East Asia. They have oval pseudobulbs that emerge from a rhizome. Each pseudobulb has one or two leaves. The flowers issue either from the base of the pseudobulb or from the top. They vary both in size and colour. The majority are uninteresting and not long lasting, except for Coelogyne cristata.

Coelogyne is creeping in habit, so it is best to be grown in hanging pots. Water them well during the growing season. To induce flowering, allow them to dry out a bit. Here are some species of Coelogyne:
  • Coelogyne asperta
  • Coelogyne cristata
  • Coelogyne foestermani
  • Coelogyne longifolia
  • Coelogyne pandurata
  • Coelogyne rochussenii

Positioning Coelogyne

Coelogyne likes a well-lit place. Screen them from mid-day sun. They are best grown in a greenhouse. Coelogyne cristata thrives best in an east-facing window.

Care

Ensure that temperature does not drop below 12°C (5e°F) or between 16°C and 18°C during the day.

Watering

Coelogyne enjoys generous watering during their growing period. Make sure the water is free of minerals and lime. After flowering, the plant should be given a dormant season from one to two months, when you should reduce watering. Temperate species need 6-8 weeks dormant season while tropical species will grow throughout the year with only a short rest in autumn.

Feeding

Just a little orchid fertiliser is all that the Coelogyne needs, during the growing season.

Repotting

As earlier mentioned, Coelogyne enjoys being grown in hanging baskets. Use sphagnum moss or osmunda fibre.

Propagating

You can propagate your Coelogyne by seed or by division. When dividing your plant, ensure that each section has at least three pseudobulbs.

Pests and Diseases

Look out for scale insects and red spider mites.

Coelogyne barbataCoelogyne barbata
Author: Dalton Holland Baptista (cc-by-sa-3.0)

Coelogyne calcicolaCoelogyne calcicola
Author: Dalton Holland Baptista (cc-by-sa-3.0)

Coelogyne corymbosaCoelogyne corymbosa
Author: Dalton Holland Baptista (cc-by-sa-3.0)

Coelogyne fimbriataCoelogyne fimbriata
Author: Orchi (cc-by-sa-3.0)

Coelogyne fuerstenbergianaCoelogyne fuerstenbergiana
Author: Dalton Holland Baptista (cc-by-sa-3.0)

Coelogyne fuscescensCoelogyne fuscescens
Author: Dalton Holland Baptista (cc-by-sa-3.0)

Coelogyne lacteaCoelogyne lactea
Author: Dalton Holland Baptista (cc-by-sa-3.0)

Coelogyne lawrenceanaCoelogyne lawrenceana
Author: Dalton Holland Baptista (cc-by-sa-3.0)

Coelogyne massangeanaCoelogyne massangeana
Author: Pablo Alberto Salguero Quiles (cc-by-sa-3.0)

Coelogyne mayerianaCoelogyne mayeriana
Author: Dalton Holland Baptista (cc-by-sa-3.0)

References

  • Hamlyn Encyclopedia of House Plants, by Rob Herwig
  • Orchids of Asia, by Teoh Eng Soon
  • The Macdonald Encyclopedia of Orchids
  • Orchid Growing in the Tropics, by the Orchid Society of South East Asia

 Index of 690 Plants in The Flowering Garden





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