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 1 of 2 12 LastLast
Results 1 to 10 of 12

Phals: getting the best blooms

This is a discussion on Phals: getting the best blooms within the General Orchid Culture forums, part of the Orchid Culture category; At the Shreveport SWROGA show, Dr. Yin-Tung Wang gave the results of several years of ...

Click here to increase the font size Click here to reduce the font size
  1. #1
    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 Phals: getting the best blooms

    At the Shreveport SWROGA show, Dr. Yin-Tung Wang gave the results of several years of experiments he conducted with his grad students on Phalaenopsis. Here are two points he made that I thought would be of particular interest to home growers.

    Fertilizing: Contrary to popular belief, you'll get the longest spikes and largest blooms if you *do not* switch from a regular, balanced fertilizer to a blossom booster type of fertilizer when you see a spike coming on. The lower Nitrogen and higher Phosphorus in blossom boosters don't help Phals bloom better, and actually, the switch will cause you to have shorter spikes and fewer blooms. He also noted that once a Phal spike has exceeded 10 inches in length, no amount of fertilizing will make a difference as to how large or how many flowers will develop. Without going into all the experiment's details, this was the conclusion: keep using your regular, balanced (all the same numbers) fertilizer even when a Phal is in spike, and be sure not to miss any scheduled fertilizing from spike initiation up to at least a ten inch spike length. You can keep fertilizing past the ten inch point to make sure your plant stays healthy, but it won't do anything to increase that spike's blooms.

    Using bleach as a fungicide / bactericide / algaecide:
    Chlorine is deadly to orchids past certain concentrations. But at low concentrations, bleach is an inexpensive way to help keep diseases from attacking your Phals. Mix no more than 1 teaspoon bleach per gallon of water, and spray your plants' foliage and stems, tops and bottoms, thoroughly. Make sure none of the solution hits any flowers or they'll be ruined. One day later, flush the pot completely with plain water. Don't forget to do this, or the bleach will burn the roots and kill them. Dr. Wang repeated this process once a month, and he found that the instances of disease on his Phals were greatly reduced.

    Gilda asked about snow mold, which is a fungus that grows particularly well in decaying media. The bleach treatment would eventually kill it, but it would be better to just repot the plant in fresh media after cleaning the roots.

    If there was any more to this thread, I can't remember it; but this, I think, covers the high points.

  2. #2
    orchidaddict789's Avatar
    orchidaddict789 is offline Senior Member
    My Grow Area
    Windowsill
    Favorite Orchid(s)
    Phalaenopsis/Cattleya species
    Join Date
    May 2004
    Location
    USA (MD)
    Posts
    669
    Member's Country Flag

    Default

    Thanks for the info, Louis! Very helpful/interesting

  3. #3
    OrchidTraci's Avatar
    OrchidTraci is offline Senior Member
    Join Date
    Oct 2003
    Location
    Western New York
    Posts
    1,129

    Default

    I cannot remember where, but I read there is a method to 'preventing' spiking/ flowering on phals until desired by temperature controle. But I can't remember the facts so I should really keep my mouth closed!

  4. #4
    uncasteeb's Avatar
    uncasteeb is offline Senior Member
    Join Date
    Jul 2004
    Location
    England
    Posts
    1,666

    Default

    I read there is a method to 'preventing' spiking/ flowering on phals until desired by temperature controle
    Keeping the temps above 82f day & night IIRC.
    Also double the amount of shading(1/2 the amount of light it recieves).
    Also keeping temps between 68f to 78f for a spiking plant should maximise the size of spike , flower count & flower size.

  5. #5
    momokev's Avatar
    momokev is offline Senior Member
    Join Date
    Jun 2004
    Location
    Mooresville, NC
    Posts
    360

    Default

    Good to know! Better switch back fertilizers!

    Lisa

  6. #6
    OrchidTraci's Avatar
    OrchidTraci is offline Senior Member
    Join Date
    Oct 2003
    Location
    Western New York
    Posts
    1,129

    Default

    Quote Originally Posted by uncasteeb
    Keeping the temps above 82f day & night IIRC.
    Also double the amount of shading(1/2 the amount of light it recieves).
    Also keeping temps between 68f to 78f for a spiking plant should maximise the size of spike , flower count & flower size.
    Thanks for posting the info. I hate when I 'know a joke' and forget the punchline so to speak.

  7. #7
    orchid_fan's Avatar
    orchid_fan is offline Senior Member
    Join Date
    May 2004
    Location
    Los Angeles, CA
    Posts
    220

    Default

    This is really useful information! Thanks everyone!

  8. #8
    prmetime is offline Junior Member
    Join Date
    Nov 2004
    Posts
    4

    Default Question

    Louis - Thank you for this information. I do have a question however which you may be able to answer. Did Dr. Wang suggest using a blossom booster to initiate the spike (and then switch back to the balanced fertilizer once this has occurred)? Or was he suggesting not to use the blossom booster at all?


    Thank you for any help and for the terrific, informative forum.

  9. #9
    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

    Hi prmetime--welcome aboard! I just saw your reply here or would have gotten back sooner....

    He told everyone not to switch at all--and showed a slide with the data. The plants that were switched actually had shorter spikes and fewer blooms. I had always been under the impression that a blossom booster would help initiate a spike if the plant was ready to do that, but apparently, this is not the case. Spike initiation is more a function of temperature and light levels. He had gone on to show how you could time a spike's initiating by literally growing the plant in the dark for several months. And I don't mean deep shade, I mean near complete darkness. He had several slides with a tablefull of plants that were covered by a black tarp, and told us that this practice was very common in the industry for timing spikes so that blooms are just beginning to pop for, say, mother's day. I wish I had taken notes instead of just sitting there with my mouth hanging open....

  10. #10
    prmetime is offline Junior Member
    Join Date
    Nov 2004
    Posts
    4

    Smile Thanks again Louis!

    I appreciate the info. and the very nice welcome.

    I have been doing some surfing and reading on Dr. Wang's research - all very interesting. I am certainly going to give it a try!

Page 1 of 2 12 LastLast

Similar Threads

  1. Blooms on the way!
    By Lambert in forum **NOT IN BLOOM** All Genera
    Replies: 3
    Last Post: November 21st, 2009, 11:18 PM
  2. Onc Blooms Vs. Phal Blooms ;-)
    By kuteorchid in forum Phalaenopsis, Oncidium, & Intergenerics IN BLOOM
    Replies: 11
    Last Post: December 16th, 2008, 02:50 AM
  3. New Blooms
    By bluemoon in forum Eye Candy
    Replies: 15
    Last Post: June 29th, 2008, 10:48 AM
  4. Cut blooms off phals
    By ischel1 in forum **NOT IN BLOOM** All Genera
    Replies: 5
    Last Post: April 30th, 2008, 02:05 PM
  5. It blooms!
    By momokev in forum Cattleyas, Vandas, Dendrobiums IN BLOOM
    Replies: 3
    Last Post: September 15th, 2004, 09:00 PM

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.