ONCIDIUMS: Cool Growing

Oncidium Alliance Orchid Doctor

by Robert M. [Bert] Hamilton (Compiler)

Originally published in The Orchid Doctor in 1980 and 1988

Posted by Sys Admin almost 8 years ago.

Article Blog   Article Index
Onc. macranthum and its allies of the Cyrtochilum section, including Onc. superbiens, serratum, falcipetalum, lamelligerum, anthocrene, monachicum, and leopoldianum; they grow cool to cold in Colombia and Peru; a mild to strongly acid medium is recommended. OD71-147+
Share on Social Media:  
Log in to Add a Comment

More The Orchid Doctor Articles under the Heading Oncidiums

Oncidiums Comments
ONCIDIUMS: Breeding Characteristics 18 oncidiums, species and hybrids, rated for a projected attempt at improvement of Oncidium Goldiana (Golden Shower) by eliminating virus; 13 criteria applied, pointing to perfection; refer to OD80-45+ 0
ONCIDIUMS: Equitant Types A cultural hint on how to grow them in Tennessee in a small pot on one lump of charcoal. OIE85-5They will not flower, possibly when they are over-fertilized, so the feed rate should be halved. A83-698 0
ONCIDIUMS: Flowering Excessively If you can believe it, some have a tendency to flower themselves to death (not in my greenhouse) without showing signs of failure, so cut off the spikes after several weeks. SA85Mar-53 0
ONCIDIUMS: Good Pollen Parents Those showing male preference in hybridizing as against being the pod parent; 18 plants listed; refer to OD77-101 0
ONCIDIUMS: How to Grow Them General cultural directions for most types; refer to A79-334+ 0
ONCIDIUMS: Sexual Compatibility Groupings 58 species arranged by name in four groups on the basis of sexual compatibility for breeding; six other genera grouped on the basis of their compatibility with oncidiums; much other breeding data; refer to A64-1035+ 0
ONCIDIUMS: Terete-leaved Lost their new grewth through rotting and blackening which may have been caused by daily (excessive) watering or because of Phytophthora or Pythium fungus,neither of which are affected by the spray used, benomyl. A82-487 0
ONCIDIUMS: Watering Many oncidiums dislike heavy watering; they need a decided reduction except when in full growth. OR75-209On repotting the mix should be open and only a sniffle of water applied, no more is necessary; mule-eared types reserve lots of energy in their massive leaves; let the roots develop so they will be full when needed; many come from areas of little rain, or long dry periods. OR85-136 0

New Topics

  1. Danielle Carbonneau asked question phalaenopsis, dendrochum and Odontoglossum in category Phalaenopsis
  2. Nicholas Filannino asked question Phalaenopsis William Kistler? in category General Discussion
  3. Mark Farran asked question How to open and read articles listed in category General Discussion
  4. Juliann Eckhard started topic Cattleya little susie in category Cattleya Alliance
  5. Shannon Gardea asked question NELLY ISLER in category General Discussion
Ask a Question

Start a Topic

New Comments

  1. Louis Wilson commented on member plant E. alata f. alba by Louis Wilson
  2. Julie Ellner commented on member plant Phal. amabilis var. formosanum by Vickie Seibert
  3. Julie Ellner commented on member plant Rlc. Green Dragoon 'Mendenhall' by Jeanne Uzar Hudson
  4. Danielle Carbonneau commented on member plant Ons. Catatante 'Los Roble' by Henry Shaw
  5. Barry J Silver commented on orchid Lyon. SunCoast Pink Passion
  6. Carol Holdren commented on topic "Phalaenopsis William Kistler?" by Nicholas Filannino
  7. Carol Holdren commented on orchid Colm. Eric Gabriel Heines
  8. Carol Holdren commented on topic "Cattleya little susie" by Juliann Eckhard
  9. Carol Holdren commented on member plant Bc. Morning Glory by Chris Siolo
  10. R .Benson commented on member plant Kir. New Hybrid (Fred Clarke) SVO9831 by R .Benson
  11. Carol Holdren commented on topic "Blooming Stenglottis Venus “jamboree “" by John Urey
  12. Jeanne Uzar Hudson commented on member plant Lc. Canhamiana var. coerulea 'Cobalt' by Jeanne Uzar Hudson
  13. Jeanne Uzar Hudson commented on member plant Sns. gemmata by Jeanne Uzar Hudson
  14. Stefan Neher commented on topic "Orchid roots .com site?" by Mary Lane
  15. Kevin Barry commented on member plant Bul. Tammie Sue Pernas by Tony Pernas
  16. Linda Hartman commented on member plant Ctt. Final Blue by Linda Hartman
  17. Kevin Bergeson commented on member plant Paph. rothschildianum by Kevin Bergeson
  18. Carol Holdren commented on topic "recently purchased orchid shows unstoppable roots " by David George
  19. Michael Makio commented on orchid V. Beatrice Makio
  20. Carol Holdren commented on topic "shorter stem with less vigorous blooms" by katherine mott