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Go Back   Orchid Board - Most Complete Orchid Forum on the web ! > ORCHID ALLIANCES > Vanda Alliance - others
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  • 4 Post By Hawaiian Sunshine

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  #1  
Unread 03-07-2013, 02:01 PM
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Default New Renanthera - what do i pot it in??

Hi All!

I bought an AWESOME Renanthera Kalsom "Red Dragon" from Kawamoto Orchid (highly recommend this nursery!) in hawaii over christmas. I've been lusting after this plant since I first saw it many years ago in the Kawamoto parking lot in pots blooming huge sprays of blood red flowers. Now I am back in Idaho with my little plant and I want to make sure I treat it right. It was potted in bark chips which I find unusual but they're the experts! I gently shook out the medium and the roots look pretty good to me but out of three fat happy new roots one of them grew down into the medium, hit another root and the green growing tip disappeared. I'm worried the mix is staying too wet in the middle while the surface roots are getting too dry. The surface roots are flaking like they have dandruff! I've had success growing several orchids in S/H including Den. aggregatum which I know is not a vanda but does like high humidity, air flow and light like a vanda. What i'm wondering are:

pot: should i switch to a terra cotta pot instead of a plastic one to improve air flow? I don't think this plant will be very happy in a basket in my conditions but I'm willing to consider a complex set up for this delicious orchid.

medium: Has anyone tried S/H with Renanthera or similar? I've seen vandas grown succesfully in S/H when i searched not specifically renanthera. I am sorely tempted to do it but I don't think I'm gonna get back to Hawai'i anytime soon if this one goes to orchid heaven... Any other suggestions other than putting some LECA in and maybe some sphag on top??
- does anyone have any thoughts about Ren culture in vase?

For now i'm throwing it in a vase with some sphag and let it air out for it a bit until I decide to do something different.

THANK YOU
Karen.
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New Renanthera - what do i pot it in??-p3073006.jpg   New Renanthera - what do i pot it in??-p3073000.jpg   New Renanthera - what do i pot it in??-p3073002.jpg  

Last edited by kkdcalgary; 03-07-2013 at 06:28 PM..
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  #2  
Unread 03-07-2013, 08:24 PM
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Generally the thicker the root, the coarser the medium. It also really depends largely on your watering habits. If you like to water very frequently you can use Styrofoam and perlite mix. Watering an average amount I'd use LECA and bark or very little watering I'd use sphag and CHC.

For my vandas I use stones, growstones, bark and sphag but I've taken out most of the sphag over the rainy season as it's stayed wet for over a day and I'm worried about root rot.

I'm not sure if I was much help sorry, but basically every medium would depend on your climate and watering habits
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  #3  
Unread 03-09-2013, 12:50 AM
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Nice plants !
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More Vanda species of my collection :
http://vandaspecies.blogspot.com/
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  #4  
Unread 03-09-2013, 06:24 PM
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Idaho grow zone, but how is your humidity indoors? What position window is it in?
S/H will do good with your seedling since it is young and can be trained to get acustomed to your home environment. I have a Renanthera in S/H and I also put it outdoors in warmer months= Manhattan has high humidity in the summer and the tall buildings shade my area by 11am....
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Unread 03-09-2013, 06:43 PM
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Well there u go...Bud is here no need to add. lol
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Unread 03-10-2013, 03:45 AM
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Hi Karen. Congratulations on your purchase. You made a good choice. In my opinion, Ren. Kalsom 'Red Dragon' is one of the best red Renantheras around. I obtained a plant from Kawamoto Orchid Nursery a few years back. The plant blooms regularly each year (sometimes twice) and seems to always bring home a trophy when it is entered in a Show. I have my plant growing in a wooden basket with large chucks of orchid bark as the media. Here is a picture of the plant in bloom last year.


Ren. Kalsom 'Red Dragon' by hawaiiansunshine, on Flickr
Bud, CR7cristiano, Stray59 and 1 others like this.
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I'm a small backyard grower in a residential area overlooking Pearl Harbor. I barely have enough yard space to keep my orchids happy. Most of the photographs that I post on this Board are of plants that I raised and bloomed. My best friends are orchid people.
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Unread 03-10-2013, 06:39 PM
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Hawaiian Sunshine:
Beautiful plant - I really like the color and can see why it ribbons at the shows. And good advice from someone who obviously should know!
Very nice - thanks for posting the pics,
Also kkdcalgary:
Really nice Den. aggregatum - good healthy sprays and good healthy looking plants! Best of luck with the Renanthera -
Steve
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