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 4 of 5 FirstFirst ... 2345 LastLast
Results 31 to 40 of 47
Like Tree38Likes

Switched to semi hydro. When should I check roots.

This is a discussion on Switched to semi hydro. When should I check roots. within the Semi Hydro / Lights / Greenhouses / Accessories forums, part of the Orchid Culture category; I was reading flushing the pots with hydrogen peroxide is useful for clearing the algae ...

Click here to increase the font size Click here to reduce the font size
  1. #31
    ksriramkumar is online now Senior Member
    My Grow Area
    Outside 24/7
    Favorite Orchid(s)
    Vanda, Phals & Dendrobium
    Join Date
    Jul 2013
    Gender
    Male
    Location
    Bangalore,India
    Posts
    6,790
    Member's Country Flag

    Default

    I was reading flushing the pots with hydrogen peroxide is useful for clearing the algae once a while. I have not tried it yet. any experiences?.

  2. #32
    andreaemilia's Avatar
    andreaemilia is offline Senior Member
    Real Name
    Andrea
    My Grow Area
    Greenhouse
    Favorite Orchid(s)
    paphs, phals, cymbs,cattleyas
    Join Date
    Mar 2012
    Gender
    Female
    Location
    Romania, Arad
    Posts
    506

    Default

    HELLO
    I am not the most experienced on growing orchids in S/H but since I grew about 90% of my almost 200 orchids in S/H I can tell you what I observed: roots after transfer in S/H behave differently for every kind of orchid. Also I only use transparent containers for every kind of orchid, so I can check on roots, and my containers have holes in the bottom and side of the pot. I fill the pot with LECA pebbles and than the potted plants are placed in large trays with elevated margins or smaller box like containers if they are to be hanged on the wall. The level of liquid in the trays is about 1.5- 2 cm. I had 0 success using single pots with holes on the side, where the liquid stays in the bottom part. In my opinion the liquid with the nutrient has to be able to circulate.
    With the phals I trasfer them in the pebbles, leave them in their old place and watter them normally with hydroponic nutrients- so I grow them first for a month or so in inert media, after that they go in the tray with lower levels of liquid for a month or so, and if everything seems ok, after this period I move them with the rest of the phals. I transfer in S/H only if the weather is very warm and after cutting the flower stems. This way I can reduce root rot to minimum. With the cattleyas I do much the same, of course they need more light and stay outside, the same goes for the cymbs and oncidium types. I have 0 succes in growing Miltoniopsis and Buragearas in normal growth media or S/H so no advice about them too offer.
    The paphs I transfer immediately in the tray with liquid after repotting, they seem to like it and do not rot.
    Since the pots I use are are food containers of about 1l, about 18 cm tall (no S/H pots available here or if they are are too expensive), every 2 weeks for the phals and 1 week for the rest of the orchids I watter every plant from above with 30-40 ml of watter with nutrients. Cymbs get more watter, smaller plants of course get smaller containers, and lower levels of liquid. The keikis I plant directly from the mother plant in pebbles and follow the same rule from above, a month watter as if in normal media, then less liquid and so on.
    I always keep an eye on the temperature. In cooler periods I lower the levels of the liquid, to the point of keeping the pebbles moist with only a film of watter in the bottom of the tray.
    I have no problem with the green algae forming in the pots, they do not smell nor seem to bother the plant.

  3. #33
    78Terp's Avatar
    78Terp is offline An Avant Gardner
    Real Name
    Harvey
    My Grow Area
    Under Lights
    Favorite Orchid(s)
    1-Neo falcata,2-Phal,3-Paph
    Join Date
    Nov 2013
    Gender
    Male
    Location
    Littleton, Colorado
    Posts
    6,036
    Member's Country Flag

    Default

    I'd love to see some pics of your s/h set up.

  4. #34
    andreaemilia's Avatar
    andreaemilia is offline Senior Member
    Real Name
    Andrea
    My Grow Area
    Greenhouse
    Favorite Orchid(s)
    paphs, phals, cymbs,cattleyas
    Join Date
    Mar 2012
    Gender
    Female
    Location
    Romania, Arad
    Posts
    506

    Default

    OK
    I made some pictures, they are not very clear because us getting dark outside and Have only ny phone to take pictures with
    In the first picture is my hallway, I have 4 tray sitting atop of 2 refrigerators.Name:  Resize of Fotografie-0288.jpg
Views: 228
Size:  15.8 KB
    and some details of them
    Name:  Resize of Fotografie-0282.jpg
Views: 229
Size:  16.7 KBName:  Resize of Fotografie-0282.jpg
Views: 229
Size:  16.7 KB
    Name:  Resize of Fotografie-0279.jpg
Views: 225
Size:  23.0 KBName:  Resize of Fotografie-0279.jpg
Views: 225
Size:  23.0 KB
    Name:  Resize of Fotografie-0281.jpg
Views: 217
Size:  22.6 KB

  5. #35
    andreaemilia's Avatar
    andreaemilia is offline Senior Member
    Real Name
    Andrea
    My Grow Area
    Greenhouse
    Favorite Orchid(s)
    paphs, phals, cymbs,cattleyas
    Join Date
    Mar 2012
    Gender
    Female
    Location
    Romania, Arad
    Posts
    506

    Default

    I have no ideea why the some of the pictures got posted twice
    Here are some of the containers I hung in the wallName:  Resize of Fotografie-0293.jpg
Views: 232
Size:  20.6 KB
    The phal keikisName:  Resize of Fotografie-0277.jpg
Views: 235
Size:  23.8 KB
    The dendrobium keikis outside in my open hall way
    Name:  Resize of Fotografie-0287.jpg
Views: 331
Size:  29.1 KB

  6. #36
    andreaemilia's Avatar
    andreaemilia is offline Senior Member
    Real Name
    Andrea
    My Grow Area
    Greenhouse
    Favorite Orchid(s)
    paphs, phals, cymbs,cattleyas
    Join Date
    Mar 2012
    Gender
    Female
    Location
    Romania, Arad
    Posts
    506

    Default

    The following pictures are from my cottage where I have orchids in S/H on my windowsill with individual plastic saucers under the pots as well as trays inside and outside. I do not have pictures from the outside orchids.
    Name:  Resize of Fotografie-0271.jpg
Views: 1050
Size:  26.8 KB
    Name:  Resize of Fotografie-0272.jpg
Views: 263
Size:  20.8 KB
    And the last photo im my Gatrixianum XGolden Acress paph blooming in the keiki tray
    Name:  Resize of Fotografie-0274.jpg
Views: 343
Size:  22.6 KB

  7. #37
    78Terp's Avatar
    78Terp is offline An Avant Gardner
    Real Name
    Harvey
    My Grow Area
    Under Lights
    Favorite Orchid(s)
    1-Neo falcata,2-Phal,3-Paph
    Join Date
    Nov 2013
    Gender
    Male
    Location
    Littleton, Colorado
    Posts
    6,036
    Member's Country Flag

    Default

    Very nice.

    I guess I was wanting to see how you have the reservoirs with your 'holes'.

  8. #38
    andreaemilia's Avatar
    andreaemilia is offline Senior Member
    Real Name
    Andrea
    My Grow Area
    Greenhouse
    Favorite Orchid(s)
    paphs, phals, cymbs,cattleyas
    Join Date
    Mar 2012
    Gender
    Female
    Location
    Romania, Arad
    Posts
    506

    Default

    If you wanted to see the pot with the holes you should have said so.
    I made some more pictures Name:  Rotation of Resize of Fotografie-0277.jpg
Views: 226
Size:  16.1 KB
    Name:  Resize of Fotografie-0278.jpg
Views: 231
Size:  15.5 KBName:  Resize of Fotografie-0281.jpg
Views: 228
Size:  15.9 KB
    As you can see the plastic containers I use are not pretty, but are effective, cheap and give me the space I need to keep all my ever growing colletion

  9. #39
    raybark's Avatar
    raybark is online now Senior Member
    Real Name
    Ray Barkalow
    My Grow Area
    Under Lights
    Join Date
    Oct 2012
    Location
    Oak Island NC
    Posts
    1,274

    Default

    Quote Originally Posted by ksriramkumar View Post
    I was reading flushing the pots with hydrogen peroxide is useful for clearing the algae once a while. I have not tried it yet. any experiences?.
    Ordinary "drugstore" 3% H2O2 is of little value, as the weak stabilizer used (stannous chloride) is only meant to keep it stable in the bottle. Once it has been exposed to the environment, it decomposes almost instantly.

    The 0.1% stuff stabilized with peroxyacetic acid, on the other hand, stays active until the water evaporates, so it is quite effective. In the US, it's available as Zero-tol, or Oxidate, or under their new labels as Biosafe Disease Control.

    ---------- Post Merged at 11:47 AM ----------

    Andrea, based upon the holes in the bottom, no reservoir, and the dryness of the LECA, it looks to me that you are really not growing in S/H at all, but are merely using LECA as a medium in traditional culture.

  10. #40
    chemist's Avatar
    chemist is offline Senior Member
    Real Name
    Svetlana
    My Grow Area
    Windowsill
    Favorite Orchid(s)
    Phals, catts, catasetums
    Join Date
    Jul 2014
    Gender
    Female
    Location
    Long Island, NY
    Posts
    463
    Member's Country Flag

    Default

    Quote Originally Posted by raybark View Post
    Andrea, based upon the holes in the bottom, no reservoir, and the dryness of the LECA, it looks to me that you are really not growing in S/H at all, but are merely using LECA as a medium in traditional culture.
    Ray, but those reservoirs with holes in the bottom stand in container with water (looks like inch of water) so do you thinks it still not S/H?
    Posted via Mobile Device

Page 4 of 5 FirstFirst ... 2345 LastLast

Similar Threads

  1. New to semi-hydro
    By dawn_green in forum Semi Hydro / Lights / Greenhouses / Accessories
    Replies: 11
    Last Post: April 8th, 2014, 02:59 PM
  2. Ansellia africana in semi-hydro- holy roots!
    By Raphael in forum **NOT IN BLOOM** All Genera
    Replies: 13
    Last Post: June 9th, 2010, 05:33 PM
  3. Semi rootless Phal in Semi-hydro?
    By Joyday in forum Orchid Ailments / The Compost Pile
    Replies: 11
    Last Post: January 16th, 2010, 01:56 PM
  4. when to check the roots
    By Dess in forum New Growers: Ask the Senior Members
    Replies: 5
    Last Post: August 18th, 2009, 07:10 PM
  5. Help with semi-hydro repots
    By Orchidfetish82 in forum Semi Hydro / Lights / Greenhouses / Accessories
    Replies: 5
    Last Post: June 5th, 2006, 12:36 PM

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.