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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 found those are very reluctant to grow new roots. Do they need to be ...

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  1. #1
    Naoki's Avatar
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    Default Rhynchostylis and watering

    I found those are very reluctant to grow new roots. Do they need to be wetter or drier than Vandas? My poor Rhynchostylis gigantea "peach" could not put out any new roots as I keep watering it. It then started dropping a leaf one by one. Finally it was totally gone. ** sigh**

    I know it dried out by the end of the day. I wonder it dried too fast to initiate new roots. What do you thnk?

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    Naoki, They aren't as fast to produce roots as vandas and they don't produce as many roots in my opinion. Another thought of mine is that with color varieties such as the peach they aren't quite as resilient as say the red. Mine are in cattleya light, less than vandas. These are one of the few plants that I allow to stay in a wooden basket and the reason being is for the extra little bit of humidity the basket makes. I add chunks of tree fern fiber(a few large chunks). I soak the baskets a couple of times a week. I think they require more work than vandas. Some of the aerides I treat the same for the same reasons.

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    I find that they love mounting more than being confined in a basket.

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    I think both Cathy and Yew are right. If you have high humidity, then they will do well mounted. But if your growing conditions do not have the high humidity that they require, you are better off potting them. Also, they are very slow growing orchids. I have 4-5 seedlings (of various colors like alba, orange and red). Again I put them in a wooden basket and they have probably put out only 1 new leaf!

    Cathy, btw, which of the Aerides do you grow in a wooden basket?

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    Thank you all for the great advise.

    I now have to get busy figuring out how I should repot them before I kill them.

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    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.
    Quote Originally Posted by satishsherikar View Post
    I think both Cathy and Yew are right. If you have high humidity, then they will do well mounted. But if your growing conditions do not have the high humidity that they require, you are better off potting them. Also, they are very slow growing orchids. I have 4-5 seedlings (of various colors like alba, orange and red). Again I put them in a wooden basket and they have probably put out only 1 new leaf!

    Cathy, btw, which of the Aerides do you grow in a wooden basket?

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    Thank you, Amey.

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    I am glad you started this post Naoki. The comments you all have written enhances and confirms my own experiences. I have also found that with Rynchostylis retusa and Rynchostylis coelestis that there are times when root growth and/or leaf growth is quite slow. AL

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    Quote Originally Posted by satishsherikar View Post
    I think both Cathy and Yew are right. If you have high humidity, then they will do well mounted. But if your growing conditions do not have the high humidity that they require, you are better off potting them. Also, they are very slow growing orchids. I have 4-5 seedlings (of various colors like alba, orange and red). Again I put them in a wooden basket and they have probably put out only 1 new leaf!

    Cathy, btw, which of the Aerides do you grow in a wooden basket?
    Satish, I grow odorata, multiflora and flabellata in baskets. The easiest one of Aerides has been a houlletiana that was purchased recently. It has grown quickly and has produced two spikes. The rest of the tribe is slow growing.

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    Just found out that my retusa is now GONE! Ahhhhhh.

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