Orchid Q&A

* Air Conditioning
* Ansellia africana
* Aquarium Water
* Brassavola Care
* Black Growths
* Brassavola Care
* Calanthe Culture
* Catts in Hawaii
* Change of Environment
* Coconut Husk
* Cymbidiella rhodocheila
* Cymbidium Care
* Culture of Alba Orchids
* Dehydration
* Dendrobium Care
* Dendrobium Repotting
* Dendrochilum magnum
* Dormancy
* Dry Conditions
* Epsom Salts
* Eulophia species
* Fertilizer Injector Dosage
* Flowering Vanilla
* Habenaria rhodocheila
* Holcoglossum kimballiana
* Inobulbum munificum
* Jewel Orchids
* Judging Orchids
* Leaf Color
* Leaf Residue
*
Leaftip Burn
* Liparis viridiflora


Q.

Dendrochilum magnum
I just purchased a Dendrochilum magnum and am not sure about its care, medium or environment. Second, I was at a show and discussed the merits of coconut fiber as a medium. Could you tell me the pros and cons of the medium as well as what plants might benefit from it. What is its breakdown time? — Brent Martin

 

A.

Dendrochilum magnum is truly the king of this fine genus and seems to grow easily under cattleya conditions (60 F nights and 80° F days with bright light). We use a medium similar to what we would use for paphiopedilums or oncidiums, and prefer to underpot. Keep evenly moist while in active growth and repot in spring before new growths emerge.


Coconut fiber and chips have different properties. The chips are being used successfully as a substitute for equivalently sized fir bark and seem to have about the same lasting qualities, though they dry more slowly. Some growers report longer intervals between potting, so there may be benefit in this medium for plants that do not respond well to repotting. Coconut fiber is not often seen, but ground coconut (coir), a substitute for peat moss, is. — Ned Nash



Dendrochilum magnum; photo © Greg Allikas.


Orchid Q&A

* Masdevallia coccinea
* Mastering Miltonias
* Maxillaria sophronitis
* Mealybug Infestation
* Meristemming Monopodials
* Missing Pollen
* Night Length
* Night Lights
* No Flowers
* Non-flowering Doritaenopsis
* Oncostele Wildcat
* Oncidium Sharry Baby
* Orchid Honeydew
* Paphinia herrerae
* Paphiopedilum armeniacum
* Paphiopedilum delenatii
*
Phaius Culture
* Phalaenopsis Problem
*
Phalaenopsis Spiking
* Plant Sitter
* Psychopsis papilio
* Rainwater Collection
* Redwood Bark
* Re-rooting Plants
* Spotted Oncidum Leaves
*
Sticking Flowers
* Storing Pollen
*
The Larger the Better
* Vanda Keiki
* Virus Question
* Volck Oil Spray