Shop Orchid Care OrchidTalk Orchid Forum Weather Station Links Nursery

Welcome to OrchidTalk Orchid Forums


The Friendliest Orchid Community on the Internet!


  •  » Learn to Repot your Orchids
  •  » Learn Orchid Care Tips and Secrets
  •  » Find the perfect Orchid for your Growing Environment
  •  » Chat with Orchid Growing Professionals

OrchidTalk - "Bringing People Together to Grow Orchids Better!"


Let us help you grow your Orchids better; Join our community today.


YES! I want to register an account for free right now!


Register or Login now to remove this advertisement.

Results 1 to 5 of 5
Like Tree4Likes
  • 1 Post By Catt Mandu
  • 1 Post By lijun
  • 1 Post By zainal abidin
  • 1 Post By clintdawley

Repot, or not? Medium for Cattleya dowiana and Trichocentrum splendidum

This is a discussion on Repot, or not? Medium for Cattleya dowiana and Trichocentrum splendidum within the General Orchid Culture forums, part of the Orchid Culture category; I went to my local OS meeting on Sunday, came home with 4 plants: Neolauchea ...

Click here to increase the font size Click here to reduce the font size
  1. #1
    Catt Mandu's Avatar
    Catt Mandu is offline Senior Member
    My Grow Area
    Porch/Patio.
    Favorite Orchid(s)
    Cattleyas, Phalaenopsis
    Join Date
    Jun 2012
    Gender
    Male
    Posts
    208

    Default Repot, or not? Medium for Cattleya dowiana and Trichocentrum splendidum

    I went to my local OS meeting on Sunday, came home with 4 plants:

    Neolauchea pulchella (= Isabelia pulchella), mounted on cork - freebie!
    Epidendrum radicans (blooming - freebie!)
    Cattleya dowiana
    Trichocentrum splendidum (formerly Oncidium splendidum, a mule-ear type)

    My question is about the last two. The plants are both quite young, the Cattleya dowiana has pseudobulbs up to 1.5 inches tall, leaves up to 4 or 5 inches long. The Trichocentrum splendidum's longest leaf is about 3 inches. Both came from a vendor I know and respect, and the plants appear to be in great shape, good roots, and each has a new growth that is about half-mature (elongated but still flat, leaf not open, no roots emerging from the new growth).

    So here is my question. Both of these plants are currently potted in sphagnum. And growing well in sphagnum! This vendor grows just about everything in sphagnum (greenhouse, of course, where moisture can be managed). The vendor advises that I keep growing these plants in the sphagnum. But, everything I have ever read about both of these plants is to grow them in medium that is very open and fast-draining. Decades ago, I has a T. splendidum that eventually succumbed to root rot and soft brown rot (I watered too often, most likely). I grow outdoors April through October, weather permitting, so plants can be exposed to prolonged rain (or prolonged dry, and heat). Indoors under lights the rest of the year.

    My "gut" reaction is to re-pot into a coarser fast-draining material when roots start appearing on the new growths. I'm thinking of either planting in scoria (= lava rock), or a combination of cork chunks and charcoal. I am open to other suggestions, though. The pot would be either a terracotta pot, or a net pot set into another pot.

    Any thoughts or suggestions?

  2. #2
    lijun's Avatar
    lijun is offline curious
    Real Name
    lijun
    My Grow Area
    Porch/Patio.
    Favorite Orchid(s)
    exploring and getting greedy
    Join Date
    May 2014
    Gender
    Female
    Location
    north sumatra, indonesia
    Posts
    394
    Member's Country Flag

    Default

    i think the key of the mater is,.. if they are doing great and already got used of growing in the spaghnum, why change it,..

  3. #3
    Real Name
    Zainal Abidin Bin Othman
    Favorite Orchid(s)
    Huntleya, Bollea, Cochleanthes
    Join Date
    Apr 2006
    Location
    Melaka, West Malaysia
    Posts
    12,767
    Member's Country Flag

    Default

    For long term is not good especially outside the GH, the best remove some of the sphagnum dont injure the roots while pulling it, and keep the pseudobulb above the pot and cover whatever media that you going to choose, basically Catt is very tough plants and easy to grow, good luck.

  4. #4
    Catt Mandu's Avatar
    Catt Mandu is offline Senior Member
    My Grow Area
    Porch/Patio.
    Favorite Orchid(s)
    Cattleyas, Phalaenopsis
    Join Date
    Jun 2012
    Gender
    Male
    Posts
    208

    Default

    Thank you for your suggestions! I am still considering my options, but your advice is welcome.

  5. #5
    clintdawley's Avatar
    clintdawley is offline Wrapped in metal..wrapped in ivy...
    Real Name
    Clint M. Dawley
    Favorite Orchid(s)
    Cattleya Alliance
    Join Date
    Jun 2005
    Location
    Fort Worth, Texas
    Posts
    2,743
    Member's Country Flag

    Default

    I grow Cattleyas in clay pots with spahagnum until they outgrow a 4" pot. In my experience, seedling catts benefit from the extra moisture when small. I've never had an issue with rot but I do let the moss get dry and crispy in the cool winter months.

Similar Threads

  1. Cattleya Hardyana (Cattleya warscewiczii s\a 'FMB' x Cattleya dowiana)
    By Nataliwind in forum Cattleyas, Vandas, Dendrobiums IN BLOOM
    Replies: 22
    Last Post: May 5th, 2017, 12:18 AM
  2. Cattleya dowiana
    By Nataliwind in forum Cattleyas, Vandas, Dendrobiums IN BLOOM
    Replies: 68
    Last Post: January 2nd, 2016, 03:36 PM
  3. Cattleya mossiae, Cattleya lawrenceana, Cattleya dowiana, Cattleya gaskelliana,
    By Nataliwind in forum Cattleyas, Vandas, Dendrobiums IN BLOOM
    Replies: 21
    Last Post: June 30th, 2013, 08:44 PM
  4. Trichocentrum splendidum x lanceanum
    By angela in forum Phalaenopsis, Oncidium, & Intergenerics IN BLOOM
    Replies: 24
    Last Post: August 31st, 2012, 02:50 PM
  5. Replies: 12
    Last Post: June 17th, 2012, 05:16 AM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
OrchidTalk --An Orchid Growers Discussion Forum brought to you by River Valley Orchidworks. A World Community where orchid beginners and experts talk about orchids and share tips on their care, cultivation, and propagation.