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my result of semi hydro orchid growing

This is a discussion on my result of semi hydro orchid growing within the Semi Hydro / Lights / Greenhouses / Accessories forums, part of the Orchid Culture category; One more question, Geoff, or anyone else who has experience with this: if it can ...

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  1. #21
    mauraec's Avatar
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    One more question, Geoff, or anyone else who has experience with this: if it can take up to three years for the development of new roots while transitioning, how are the plants staying alive in the meantime?

  2. #22
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    Quote Originally Posted by mauraec View Post
    Thanks, Geoff - Questions, questions, questions.... I've an endless supply of them.
    Flushing is NOT necessary in S/H because the potting medium never dries out. It is only when it dries that remaining salts crystallise out. Repeated wettings and dryings then cause the crystals to grow, and when re-wet the salts re-dissolve each time making an ever stronger solution – that is why flushing is necessary ( especially in clay pots, much less so in plastic).
    A useful trick to find out what it is like in the pot ( non S/H) is to water as usual, and collect the last spoonful or so of water draining out , and then check the EC and pH of that. If you had put water in at say 600EC, and the collected drainings are at 900 EC there must be unused strong fertiliser solution ( or newly dissolved crystals) in the pot – and you know that flushing is necessary. If you put water in at pH 6.3 and the drainings are pH 4.5 you know that the compost has gone sour and re-potting is overdue .If they came out the same as they went in, all is well.
    To correct, lower pH, yes you need acid. For small quantities lemon juice or vinegar. To raise , try household ammonia. You can get stronger specialist stuff from hydroponics or maybe aquarium suppliers ( aquarists are interest d in adjusted water quality too ! ) Look for “pH Down” or “pH Up” . Down is usually orthophosphoric acid – good stuff for orchids as the Phosporus is a useful boost. Don't use straight from the bottle - too strong ! See my other posting about this.
    Transition times ? Every time you change the compost or potting media type, the plant needs new roots, because the physical root structure adapts to the material it grows into ; once fixed it can’t change those roots. So changing media frequently is a certain recipe for disaster . A good plant has live and useful roots from the last 4 years….not ones from this year and less useful or even useless ones from years,
    S/H means an abundant supply of water – everything else must be up to full capacity too in order to use that – like is the plant as warm as it wants to be, or are you operating at the extreme range of possibilities – ditto, and the same for light. Everything in balance - that’s what a healthy plant needs !

  3. #23
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    Thanks, Geoff - I'm working this out, slowly.

  4. #24
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    Thank you again - and again, Geoff. I'm experimenting with vinegar at the moment - but will move to something like the orthophosphoric acid if I can't get the results I want. I'm sure I'll be back with more questions in the near future (not a threat - just a probability).

  5. #25
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    Quote Originally Posted by mauraec View Post
    . I'm sure I'll be back with more questions in the near future (not a threat - just a probability).
    Any time Maura.
    And now for a non-orchid day. It's turned very cold in Western Europe - minus 8.3 C. in my garden at 5 am this morning. A clear blue sky and the sun shining ( 9 am) and I'm just off for a 9 mile walk on the Downs ( my turn to lead my walking club) - ridge walk, super views - glorious ! ( wearing about nine layers of clothing (exaggeration) from silk 2nd layer underwear to fleece tops - hope I don't need to answer a call of nature - it will take for ever to get there...

  6. #26
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    Geoff, you've inspired me! We have a lake out front with a 1-mile perimeter walk (granted not as exciting as walking on the Downs, but pretty anyway). It's slightly overcast here, but a balmy 60F, so I think I'll skip the silk underwear this time. And 9 times around it would make me dizzier than I already am, so maybe 2 or 3 times will suffice. Phillip is still recovering from his bout with pneumonia, so he has to take it easy - no ridgewalking for him! Am reading your piece on digital photography (from 2004) - only complaint: not enough orchids!

    Hope nature held off for you....

    Maura

  7. #27
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    I just flipped through it ( my photo book) to remind myself - have not opened it for years. I took all the pics in the book , as I went along, writing ( and re-writing ) , choosing material suitable for the passage I was working on , wherever I was at the time- so it includes my wife, (rather lost at the join between the two pages) in Fig 23 when we drove all round the peninsular part of Florida - Figs 108-110 come from the same holiday ; my younger son is in Figs 3-4, my garden Figs 227-230, and so on. It brings back some happy memories ; thank you for reminding me.

    And yes, the walk was great; the bad weather promised for later in the week-end held off, although no doubt it won't be as bad as forecast - the BBC is terrified of understatement in this department, ever since a weather forecaster laughed at the idea of a storm reaching hurricane force in England , Lo and behold it did . But now they always overstate instead -but the suggestion of a foot of snow on the road between us and London (tonight) has now been withdrawn, thankfully . I am being taken tomorrow ( I don't even have to do the driving) to one of the top restaurants in London as a belated 80th birthday celebration by some of my family, and I am enjoined to leave my wallet at home ;perhaps the first time ever I will have been in a restaurant without actually paying the bill ! I expect that will be a one-off, but hey I intend to enjoy it !

    Back to my orchids on Monday.

  8. #28
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    Glad you enjoyed the walk - and a belated Happy 80th to you! 80 seems quite young to me these days, now that my parents are in their mid-70s. Enjoy your birthday dinner - make it even more fun and order everything on the menu! I hope the snow holds off for you. Now I'm off to prep some more plants to go into S/H. No rest for the wicked...

  9. #29
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    after i try this s/h method with 2-3 Phals,i can say that i'm success about this.my all phals recovery in a short time,the root are really green and never over water like before.i can water them everyday and let the water run out from the hold.what i lern from this method are

    -drill 2 holds about 1 inch from the bottom(your plant can hydrate if you drill more hold)
    -the root of your plants contact only the mix and never touch the reservoir but the root can thrive later when reach that area.
    -put the plants in normal dept

    Now i switch all my orchids to S/H method.all pictures are my success.you can see i use plastic drinking cup for the pot





    the second one,it's was almost die before i try this method and recovery in a short time you can tell from one flower left.


  10. #30
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    Nice growing, Kitty! You give me hope that my orchids that I left at home in S/H will still be alive when I get home (I left them for 12 days). Do you have any other orchids besides phals in S/H? How are they doing and when did you switch them to S/H?

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