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Rhynchostylis and watering

This is a discussion on Rhynchostylis and watering within the General Orchid Culture forums, part of the Orchid Culture category; I'm sorry Naoki. I know how it feels. I have lost more than a few ...

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  1. #11
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    orchidsal is offline Senior Member
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    I'm sorry Naoki. I know how it feels. I have lost more than a few Vandaeous types over the last five years and it hurts, but I get the feeling we are not alone and that if you have done the best you knew how, that its part of our hobby. This makes it a little easier to take. AL

  2. #12
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    Ours is potted instead of mounted, but it is potted in lava rock. It grows better for us in this dryer condition. The roots grow slowly and get very thick and long. At least that is how our Rhynchostylis gigantea 'spots' grows.

    cheers,
    BD

  4. #14
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    Quote Originally Posted by Halloamey View Post
    I concur on most of this but not regarding the humidity. Rhynchostrylis gigantea will grow better a bit on the drier side. Plant morphology always gives the clues. Rhynchostylis leaves are much more succulent and leathery as comapred to most Vandaeceous (both are contrivances for storing water and reducing evaporative loss) Rhyn.s do better on the drier side, I have personally experienced this after moving some plants from my humid greenhouse to a open drier shade. They produce less roots under conventional culture because they need less water since they are better at storing it and reducing its loss. Grow them mounted with frequent waterings or mistings and they produce looong roots. Also the speed of growth is a rather sensitive issue, first they are slow to start and adjust to new media etc, but once they are adapted and given they have the right conditions, they can be quite vigorous, I got a few year old seedlings in 2010 and they already flowered for me in January 2012, so just 3 years from de-flasking to flower, I think this is fast as compared to most Vandaeceous.
    Amey, I'm clueless when it comes to vandaceous plants I can't seem to directly apply whatever I see of the plant morphology. I will give an example. My Rhync. retusa was in a pot and I did not seem to notice that the only hole for the hanging pot was choked by some material. So, whenever I watered, it was literally sitting in moist coconut husk. I saw it probably after 2-3 weeks and surprise! The old roots were extremely healthy and green inside. On the outside of the pot, the roots were a little brown. I have mostly seen that Rhynchostylis (both retusa and gigantea) roots are a little woody for me. Again looking at some vandas, Vanda parishii has nice thick leaves and thick roots. But I have great difficulty in keeping it alive, as the leaves start to wilt very soon in my environment due to lack of humidity. I've already killed 2 of them I think. However, the thinner leaved Vanda cristata with thinner roots is not so picky and it survives fairly in my environment with just 1 dose of watering in the morning (in a pot again). I have trouble with most of the Vandas (including the hybrids), but relatively, Aerides and Rhynchostylis do slightly better for me.

  5. #15
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    Satish, Cristata likes it cooler than most vandas. All thought they are now calling it Trudelia.
    I still think you should be able to grow vandas. If Naoki can grow them in a garage I'm sure you will succeed. I would pull the hybrids and species out of the pots (potted plants are easy to over-water) Keep them watered several times a day. And really make sure the roots are saturated. If they ever become dehydrated it takes forever to get them to soak up water again.

  6. #16
    blrnut is offline Senior Member
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    Quote Originally Posted by cdayinflorida View Post
    Satish, Cristata likes it cooler than most vandas. All thought they are now calling it Trudelia.
    I still think you should be able to grow vandas. If Naoki can grow them in a garage I'm sure you will succeed. I would pull the hybrids and species out of the pots (potted plants are easy to over-water) Keep them watered several times a day. And really make sure the roots are saturated. If they ever become dehydrated it takes forever to get them to soak up water again.
    I wish my environment was as humid as Portland. Anyways, I'm not giving up any time soon. I'm trying all different methods. Hanging bare-root does not work for my way of growing. Even if I soak a vanda in water it will dry out in less than 1/2 hour at my place. I'm trying mounting them onto branches of wood and top it up with Coconut husk, and in some cases potting them up in an orchid basket with long coconut husk fiber. So far, only couple of the Vanda species survived (but need to keep them alive atleast for 2yrs to claim success). As I mentioned earlier, vandaceous species like Rhynchostylis and Aerides do slightly better than the pure vanda species for me. One of the vanda species (supposed to be V. tessellata) had a crown-rot over 2yrs back, but had a good root-system. I put it in a wooden basket and it did nothing until 4 weeks back. It is finally giving me 2 new keikis!!! Looks like it figured out I was not gonna give up on it without a fight

  7. #17
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    BTW, sorry Naoki on your loss. Also, I did not intend to hijack your thread. I think you should buy couple more orchids to make your self feel better now

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