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GRAVEL CULTURE: Pebbles

Culture Orchid Doctor

by Robert M. Hamilton (Compiler)

Originally published in The Orchid Doctor in 1980 and 1988

Posted by Sys Admin over 1 year ago.

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One grower favors them for a collection of epiphytic orchids. OA82-7
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Gravel Culture Comments
GRAVEL: As Potting Medium Quartz stone is a good substrate for Cattleya lablata and many encyclias; it needs more watering than bark and a periodical fertilization. OD87-147 0
GRAVEL CULTURE: Cleaning the Gravel Let it soak overnight in 10% bleach to ensure cleanliness. A85-1237 0
GRAVEL CULTURE: Comparative Merits Phalaenopsis do very well, cattleyas not so well as in osmunda, mexi-fern or bark; much used around 1950, now confined to phalaenopsis; takes more labor; more problems with bush snails. A65-1003+ 0
GRAVEL CULTURE: Of Phalaenopsis It will not produce one more flower or leaf than will bark, or osmunda, etc. under good culture. A81-393 0
GRAVEL CULTURE: Pros and Cons In Florida area; advantages and disadvantages listed; comparison results with osmunda and bark; specific successes listed; refer to A57-778+; gravel culture instructions; refer to N303+; gravel considered best for seven main genera; refer to Oregon Orchid Society; Your first orchids. 6th ed.1974. 0
GRAVEL CULTURE: Success with 12 Different Genera Roofing gravel used; 75% feldspar, quartzite and quartz, 25% calcite, decayed marble, limestone and garnet (decreasing in that order); 1/4 to 1/2 inch sizes, smooth and mostly round; treat with 75% phosphoric acid to remove deposits. A63-281+ 0
GRAVEL CULTURE: Under Lights Large pea-sized particles of gravel held too much water in the bottom of the pot; half-inch sized granitic and half-inch or more feldspathic pebbles were selected; organic fertilizer preferred; if necessary to increase water-holding add chopped leaf mold. A70-1074+ 0
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  1. Raina Steiner asked question Ellison Onizuka in category General Discussion
  2. Paph hsinying jewel x paph hsying jewel september 09 2018 Adrienne Alexander asked question How to add a not-listed plant in category General Discussion
  3. Juan Martin Cabrejos asked question Any idea of this Cattleya? in category General Discussion
  4. Karl Olsen asked question Phalaenopsis Hope Star in category Phalaenopsis
  5. Brenda Sharpe asked question Dendrobium clavator in category General Discussion
New Comments
  1. Dsc 0747 Kathleen Kust commented on topic "Ellison Onizuka" by Raina Steiner
  2. Paph hsinying jewel x paph hsying jewel september 09 2018 Adrienne Alexander commented on topic "How to add a not-listed plant" by Adrienne Alexander
  3. Image Carol Holdren commented on member plant Rly. Raspberry Lemonade by Paul Keller
  4. Wbf4kvs Sys Admin commented on topic "Any idea of this Cattleya?" by Juan Martin Cabrejos
  5. Wbf4kvs Sys Admin commented on topic "Phalaenopsis Hope Star" by Karl Olsen
  6. Image Carol Holdren commented on topic "Dendrobium clavator" by Brenda Sharpe
  7. Greg Barne commented on topic "Using triacontanol on orchids" by Greg Barne
  8. Image Carol Holdren commented on member plant Phal. bellina by Andry Harmony
  9. Wbf4kvs Sys Admin commented on orchid Doc. teretifolia
  10. Wbf4kvs Sys Admin commented on orchid Den. clavator