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Do purple Vandas like it cooler/shadier?

This is a discussion on Do purple Vandas like it cooler/shadier? within the General Orchid Culture forums, part of the Orchid Culture category; So, I have a Vanda 'Pure's Wax' and it just isn't taking off like my ...

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  1. #1
    sand_tiger86's Avatar
    sand_tiger86 is offline Senior Member
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    Default Do purple Vandas like it cooler/shadier?

    So, I have a Vanda 'Pure's Wax' and it just isn't taking off like my other (pink) Vanda and Mokara outside in the upper 90's and getting blasted by fullsun in the afternoon. The other two don't mind these conditions at all, but the Pure's Wax just seems to wilt and cease root growth. Does anyone else have experience with this particular vanda? I know this is probably silly to ask anyway, because I should be listening to what the plant is obviously trying to tell me...but it is a vanda after all, and since my other two love the conditions I'm curious to know if this particular cross is an exception in Vandaville.

  2. #2
    coeruleo's Avatar
    coeruleo is offline Night Bloomer
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    i cannot do full sun here at all, even cacti die eventually. my vandas all (i only have a few) get very bright shade and maybe some early am sun. i see notes of this cross loving heat, light and water... the cross should have some cool-weather tolerance, but coerulea hybrids i think can take heat like any other vanda, but i do get sunspotting on the leaves if i am not careful to shade them. i get some sun through trellis with shadecloth in the late afternoon, and still get sunspots.

  3. #3
    sand_tiger86's Avatar
    sand_tiger86 is offline Senior Member
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    Thanks! I wonder what this things deal is, then? I won't give up on it, because those giant dark purple flowers are amazing ("blue" Vandas can read it and weep).

  4. #4
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    yvonni is offline Senior Member
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    Hey Kelly , do you have your Vandas mounted somehow ? How do they grow ? I was very interested in maybe trying one , (just to see if I can ) , but I don't think I have the ideal surroundings for them . Since you are in an apt, like myself I am thinking you might have some pearls of wisdom on getting around my limitations ?

  5. #5
    sand_tiger86's Avatar
    sand_tiger86 is offline Senior Member
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    Nicole, I have all of my Vandas in slotted clay pots filled with lava rock and some bark (more rock than bark, certainly). I keep them out on my balcony as long as the weather permits and water them once a day. That's it! Don't let anyone tell you can't grow them without living in Malaysia or having a greenhouse. With the exception of this one, my other two took off like weeds. I haven't flowered them yet, as they weren't purchased as flowering sized plants, but they certainly grow just fine. The humidity is rarely above 70, and is more typically in the 40-60 range so disregard those "they need 90 percent humidity at all times!" people. I'll admit, it does get annoying having to water them every day...but I've skipped a day or two and they didn't seem to care either way. I just tend to baby them.

  6. #6
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    yvonni is offline Senior Member
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    The watering everyday might not be a big problem for me I guess but what I was more concerned about was the fact that I have always seen them hanging or suspended from somewhere , ( I assume because of the tremendous root growth they have ) , and I don't have anywhere to hang or suspend them . That's why I asked how you were taking care of them . So you just have them sitting on a stand of some sort or hanging from your patio somehow ? Will they inevitably reach out of the pot and roots go strolling ?

  7. #7
    sand_tiger86's Avatar
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    Nope...they just sit like all my other orchids. They definitely crawl out of the pots, but that's no different than any other orchid. I, personally, think that they tend to get those 4 foot long vine-like root systems because of the way they're allowed to grow in an open, hanging basket. When they're more confined like any other orchid it's not as bad. I'm sure it's in their nature to have a massive root system, but if mine ever get that way, I'll cross that bridge when the time comes.

  8. #8
    catttan's Avatar
    catttan is offline Senior Member
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    Quote Originally Posted by sand_tiger86 View Post
    So, I have a Vanda 'Pure's Wax' and it just isn't taking off like my other (pink) Vanda and Mokara outside in the upper 90's and getting blasted by fullsun in the afternoon. The other two don't mind these conditions at all, but the Pure's Wax just seems to wilt and cease root growth. Does anyone else have experience with this particular vanda? I know this is probably silly to ask anyway, because I should be listening to what the plant is obviously trying to tell me...but it is a vanda after all, and since my other two love the conditions I'm curious to know if this particular cross is an exception in Vandaville.
    You may have noticed that under 'Favourite orchids' in my profile I listed 'Vandaceous' and not 'Vanda' because the vandaceous intergenerics is such a diverse group that we can't generalise and list them all as heat-loving or sun loving. V Pure's Wax is a case in point - it is a true Strap leaf vanda and like the majority of strap leaf vandas can tolerate up to 50 percent shade but do better under 75 percent shade in our tropical climate. Full sun after 11 am is a 'No No'. Straps too love lower temps in the 60s F at night and in the winter months. The sun loving vandaceous are those that have Arachnis, Papilionanthe, Renanthera in their parentage and that includes your Mokara. I can't list all the sun loving vandaceous that can be grown in full sun but these are the common ones that we grow in full sun : Arachnis, Aranda, semi-terete Vandas and Ascocendas, Aranthera, Mokara, Holttumara, Kagawaara (better under 50% shade), Bokchoonara (hybrids with Paraphalaenopsis). This list is by no means exhaustive, but if one has to generalise then then all terete and semi-terete vandas can be grown in full sun; most strap leaf types which include the true vandas and Ascocendas love light but not the full sun (50 -74 % shade); strap leaf vandaceous that have Arachnis (scorpion orchids) in their parentage can be grown in full sun.

    I hope my post will help.

  9. #9
    leafmite's Avatar
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    I have an unknown strap leaf so I appreciate the information. The vanda is starting to get large enough that perhaps it will be blooming-sized and I have been wondering if morning light (outside/summer) was sufficient. Thanks!
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  10. #10
    Kmac's Avatar
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    catttan--That is a very informative and helpful post. Thank you!!!

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