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.

Page 3 of 3 FirstFirst 123
Results 21 to 29 of 29
Like Tree1Likes

Deflasking Paphiopedilum rothschildianum

This is a discussion on Deflasking Paphiopedilum rothschildianum within the Paphiopedilum & Phragmipedium Info. forums, part of the Frequently Asked Questions category; Do you let all your paphs get a bit dry before you water them again ...

Click here to increase the font size Click here to reduce the font size
  1. #21
    LJA's Avatar
    LJA
    LJA is offline OrchidTalk Tech Admin
    Real Name
    Louis J. Aszod
    My Grow Area
    Greenhouse
    Favorite Orchid(s)
    Cattleya
    Join Date
    Feb 2003
    Gender
    Male
    Location
    Clarksville, Arkansas
    Posts
    3,778
    Member's Country Flag

    Default

    Do you let all your paphs get a bit dry before you water them again
    No, not at all. The majority of them don't need rest periods, and those are never allowed to dry completely off. In other words, they get watered; they dry to dampness over the next several days to 1 week, and then they get watered again. How long to wait between waterings will totally depend on the seasonal temperature and the potting media, and while the top of the media may look and feel dry, the root zone may still be very damp. Any time you're not sure, check by dipping a Q-tip a few inches down. (Some people use toothpicks for this, but I don't like running the risk of unnecessarily piercing any roots, over and over and over...)

  2. #22
    bench72's Avatar
    bench72 is offline Moderator
    Real Name
    Tim
    My Grow Area
    Porch/Patio.
    Favorite Orchid(s)
    Paphiopedilums
    Join Date
    Jan 2005
    Location
    Sydney, Australia
    Posts
    5,480
    Member's Country Flag

    Default

    Hi Everyone,

    not good news I'm afraid, the plants esp the little ones have almost all died

    a lot of them turned brown from the base so it must be too much water right? but since I deflasked these plants I only watered once. Although I did mist the top when it looks like it is drying out... should I not be doing that?

    also, there is a musty smell coming from the bark - so again I guess too much water right?

    so, with the remaining few I am wondering should I repot and mix perlite with the bark to make it less water retentive?

    cheers (though not much of it this morning)
    tim

  3. #23
    paphman910's Avatar
    paphman910 is offline Member
    Join Date
    Apr 2005
    Posts
    59

    Default

    Hi Tim:

    To bad your roth seedlings are not doing well. I live in Canada and have imported a number of Paph rothschildianum seedlings in flask. I deflask the seedlings and remove as much of the agar as possible and pot them in a 6" compot. The medium for the compot consist of medium coconut husk, sphagnum, and perlite and charcoal. Cocounut husk should first be soaked in water until they all sink to the bottom of the bucket. Then drain the water and soak the coconut in water with Epson salt (1 teaspoon per gallon). Drain and Rinse the coconut husk. Then soak in water again a couple of time. Next I would soak the coconut husk in calcium nitrate (1 teaspoon per gallon) for a couple of days. Then rince and soak in water for a few days until the water is almost colorless. This method was suggested by Antec Lab.

    I would cover the newly compots in ziplock bags.....ziplock it on the sides a bit BUT keep it open always otherwise crown rot will start with too much moisture.. This will keep the humidity high as the new seedlings grew in a flask with high humidity to begin with. Your new seedling will need to be slowly acclimatize to your condition.

    Check your water salt content and the pH is very important!

    Your night temperature should be no less than 70 F and days can go up to 85 F with no problem. Make sure you have a fan to create a slight breeze beside the compot but do not point the fan on the compot.

    Give the compot bright light suitable for Phalenopsis for the first year. Too much light will stunt the seedling roths.

    Fertilize your roths seedling about 2 month later with a high nitrogen fertilizer such as 20-20-20 at half to quarter strength. Also supplement your roths with a solution of calcium nitrate (one teaspoon per gallon) and Epson salt(one teaspoon per gallon) once a month.

    Your seedling can grow up to 12" leafspan in year and half if you are lucky.

    All my seedling came out of flask and none of them died. I have deflasked over 10 Paph rothschildianum and they are doing great!

    Paphman

  4. #24
    bench72's Avatar
    bench72 is offline Moderator
    Real Name
    Tim
    My Grow Area
    Porch/Patio.
    Favorite Orchid(s)
    Paphiopedilums
    Join Date
    Jan 2005
    Location
    Sydney, Australia
    Posts
    5,480
    Member's Country Flag

    Default

    Hi Paphman,

    Thanks for the condolences... things are pretty bad, most of the plants have passed away, mainly due to crown rot.. two are left and fingers crossed... I think next time I try to deflask, I might do it with a Paph insigne.... and actually do a whole indoor mini-glasshouse set up... and follow ur advise... and will try again in spring...

    Cheers
    Tim

  5. #25
    LJA's Avatar
    LJA
    LJA is offline OrchidTalk Tech Admin
    Real Name
    Louis J. Aszod
    My Grow Area
    Greenhouse
    Favorite Orchid(s)
    Cattleya
    Join Date
    Feb 2003
    Gender
    Male
    Location
    Clarksville, Arkansas
    Posts
    3,778
    Member's Country Flag

    Default

    Paphman, welcome, and thanks for that great post / explanation!

    Tim, really sorry about your seedlings. To be honest, it takes a few tries (at least, it did for me) before you get it right, so chalk one up to the learning curve.

  6. #26
    paphman910's Avatar
    paphman910 is offline Member
    Join Date
    Apr 2005
    Posts
    59

    Default

    Hi Tim:

    Forgot to mention that if you have high humidity you should not use any ziploc bags. When I mentioned in my post about the zipoc bag to be placed over the compot is incorrect. What I meant to say is the compot should be put into the ziplock bag with the lip of the bag above the compot so that excess moisture escapes and it will prevent condensation leading to crown rot.

    Sorry to hear that you lost most of your Paph rothschildianum. I also had a look at the site where you posted the pictures of the seedlings. They looked like they where sitting in the flask for a long time. Did the leaves from the flask show any sign of yellowing leaves? If yes, then you should look for a new supplier. Another sign is to check to see if the roots in the flask are active (root tips are white). If the rots are not active it will take a long time for the plants to reestablish and grow again.

    Hope you have a better luck next time.

    Paphman

  7. #27
    magooba is offline Senior Member
    Join Date
    Jul 2007
    Posts
    128

    Question glucose v sucrose ?

    Hi.I have a question for LVJ regarding the use of sugar. Have you ever considered using honey instead of sugar ? The consideration I am making is that
    my instinct tells me that glucose is more readily available to plants, it being closer to glycolysis than sucrose. Honey is also mildly antiseptic. Have you ever heard of this kind of reasoning ?

  8. #28
    Brutal_Dreamer's Avatar
    Brutal_Dreamer is offline Dreaming with my eyes open...
    Real Name
    Bruce Brown
    My Grow Area
    Greenhouse
    Favorite Orchid(s)
    Cattleyas & Slippers
    Join Date
    Mar 2003
    Gender
    Male
    Location
    Arkansas
    Posts
    33,846
    Member's Country Flag

    Default

    Quote Originally Posted by magooba View Post
    Hi.I have a question for LVJ regarding the use of sugar. Have you ever considered using honey instead of sugar ? The consideration I am making is that
    my instinct tells me that glucose is more readily available to plants, it being closer to glycolysis than sucrose. Honey is also mildly antiseptic. Have you ever heard of this kind of reasoning ?
    Never thought of using honey. Sugar dissolves quickly in water and it has always worked.

    Cheers,
    BD

  9. #29
    IdahoOrchid's Avatar
    IdahoOrchid is offline Member
    Join Date
    Oct 2006
    Location
    Buhl Idaho
    Posts
    928

    Default

    Honey is used as a rooting agent by some as well. Well, maybe not as the agent itself, but mostly for the antiseptic properties mentioned.

Page 3 of 3 FirstFirst 123

Similar Threads

  1. Paphiopedilum Rothschildianum
    By Brutal_Dreamer in forum Paphiopedilum, Phragmipedium, Cypripedium IN BLOOM
    Replies: 8
    Last Post: May 14th, 2008, 06:14 PM
  2. First deflasking
    By sake of silence in forum Flasking Equipment & Technique
    Replies: 1
    Last Post: November 15th, 2006, 08:33 PM
  3. Paphiopedilum Rothschildianum
    By alberto in forum Paphiopedilum, Phragmipedium, Cypripedium IN BLOOM
    Replies: 30
    Last Post: July 20th, 2006, 01:58 PM
  4. Paphiopedilum rothschildianum 'Mont Millais' FCC/AOS x 'Rex' FCC/AOS
    By Paphiopere in forum Paphiopedilum, Phragmipedium, Cypripedium IN BLOOM
    Replies: 21
    Last Post: July 1st, 2005, 10:43 PM
  5. Paphiopedilum rothschildianum 'Chester Hills'?
    By Paphraguy in forum General Orchid Culture
    Replies: 13
    Last Post: July 10th, 2004, 10:06 AM

Tags for this Thread

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.