ODONTOGLOSSUMS: Repotting Time

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
Contrary to the general rule and practice, the best time to repot is in September. OR75-44

Do it only when new growth is three to six inches high, which is when the hew root system becomes active; this can happen any time of the year; the new growth rules the time. AU76-74

Share on Social Media:  
Log in to Add a Comment

More The Orchid Doctor Articles under the Heading Odontoglossums

Odontoglossums Comments
ODONTOGLOSSUMS: Breeding For the story in France, refer to W9-57 -- intergenerics and their repotting = as to when is best, do it when growths are half developed in cool weather, spring or fall; avoid hot weather stress. A85-435 0
ODONTOGLOSSUMS: Bronzing of Leaves Maurice Vacherot prefers his plants not to bronze; McBean's (Ray Bilton) plants have very strong bronzing. AU76-76 0
ODONTOGLOSSUMS: First Flowering It is a mistake to let a small plant flower fully; restrict the first spike to one flower only. AU76-73 0
ODONTOGLOSSUMS: Footcandles of Light Required in Summer At 9:00 A.M.: l,000fc.; 12:00 noon: 1,200 to l,300fc; 3:00 P.M. :600fc; 5:00 P.M.: 500fc. OD71-88 0
ODONTOGLOSSUMS: Hard-bulbed Types Most of them need a rest; the harder the bulb the longer the rest; they come from Mexico, Guatemala, Honduras; include O. bictoniense, citrosmum, cordatum, grande (Rossioglossum), JLaeve, pulchellum, rossii, and uro-skinneri; for instance, O. citrosmum needs a rest from September to March at about 55 deg.F. to flower properly. OR73-257 0
ODONTOGLOSSUMS: Night Temperature Maintain around 60 deg.F. in summer, but ease it back to 55 in fall and winter. AU76-74 0
ODONTOGLOSSUMS: Non-flowering If the plants are in good growth, to induce flowering a rather severe reduction in light for a few weeks is advised. OR76-362 0
ODONTOGLOSSUMS: Propagation by Backbulbs It is a difficult process; try severing the backbulbs, making one cut between them and the forward group about a year before the plant is actually divided. A57-788 0
ODONTOGLOSSUMS: Propagation by Pseudobulbs Use two or three as a unit to be successful; dust the cut with sulphur or a sealing compound; place in plastic bag with damp sphagnum until roots show. AU76-76 0
ODONTOGLOSSUMS: Splitting Pseudobulbs When the outer layers of the bulb mature prematurely, cracks suddenly appear and clear, gummy fluid exudes; this can arise from excess of sunshine or/and a surfeit of potash. OR76-184 0
ODONTOGLOSSUMS: Watering Water heavily all year round; give them as much or more in winter. A76-427 0

New Topics

  1. James W McCully asked question How to read archived articles ? in category General Discussion
  2. David George asked question recently purchased orchid - what to expect in category General Discussion
  3. Danielle Carbonneau asked question phalaenopsis, dendrochum and Odontoglossum in category Phalaenopsis
  4. Nicholas Filannino asked question Phalaenopsis William Kistler? in category General Discussion
  5. Mark Farran asked question How to open and read articles listed 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