Orchid doctor

GRAVEL CULTURE: Success with 12 Different Genera

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.

Article Blog   Article Index
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+
Share on Social Media:  
Log in to Add a Comment

More The Orchid Doctor Articles under the Heading Gravel Culture

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: Pebbles One grower favors them for a collection of epiphytic orchids. OA82-7 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: 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
New Topics
  1. Karl Olsen asked question Phalaenopsis Hope Star in category Phalaenopsis
  2. Brenda Sharpe asked question Dendrobium clavator in category General Discussion
  3. Greg Barne asked question Using triacontanol on orchids in category General Discussion
  4. Image Carol Holdren started topic Orchid History in category General Discussion
  5. Tom De Mello asked question Dendrobium wardianum in category Dendrobiums
New Comments
  1. Image Carol Holdren commented on member plant Phal. bellina by Andry Harmony
  2. Image Carol Holdren commented on topic "Using triacontanol on orchids" by Greg Barne
  3. Sys Admin commented on orchid Doc. teretifolia
  4. Sys Admin commented on orchid Den. clavator
  5. Sys Admin commented on topic "Phalaenopsis Hope Star" by Karl Olsen
  6. James J Pupelis commented on orchid Paph. Jackie Sue
  7. Image Carol Holdren commented on scheduled event "Cattleya Symposium " by Odom's Orchids
  8. Bio Alex Maximiano commented on member plant B. Kiilani Stars by Nestor Moreno Martinez
  9. Bio Alex Maximiano commented on member plant Ctpsta. Leona 'Popper' by Carol Holdren
  10. Steve Maben commented on member plant Aergs. hariotiana by Tom Kuligowski