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 2 years 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. William Schinella asked question I want to know how to name this plant in category General Discussion
  2. John Marmaro asked question Availability of a particular primary hybrid in category Cattleya Alliance
  3. Jerri campbell asked question Identify this plant. in category Cattleya Alliance
  4. Richard Whyte asked question unable to add orchid to my collection in category General Discussion
  5. Picture 1 Michael Pye asked question Labels in category OrchidWiz

New Comments

  1. Image Carol Holdren commented on topic "I want to know how to name this plant" by William Schinella
  2. 92f7c225 2490 4d3b 822c 2f4b8f30d6b8 Mary Lane commented on member plant Ons. Wildcat var. Golden Red Star by Mary Lane
  3. Image Carol Holdren commented on topic "Availability of a particular primary hybrid" by John Marmaro
  4. Image Carol Holdren commented on topic "Identify this plant. " by Jerri campbell
  5. Image Carol Holdren commented on member plant Den. chrysanthum var. ? no idea, or if this is a cross by Richard Whyte
  6. Richard Whyte commented on topic "unable to add orchid to my collection" by Richard Whyte
  7. 00100lportrait 00100 burst20190402193145369 cover Sally Guan commented on member plant Den. delicatum by Sally Guan
  8. Bio Alex Maximiano commented on topic "Labels" by Michael Pye
  9. Image Carol Holdren commented on member plant Phal. Yu Pin Easter Island var. 619 by Mary Lane
  10. 92f7c225 2490 4d3b 822c 2f4b8f30d6b8 Mary Lane commented on member plant Phal. OX Golden Apple ''Honeycrisp"' by William Gorski