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  #1  
Unread 10-26-2008, 03:41 PM
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Default Species Cattleya Rest Period

Since what or which orchids need winter rest is being discussed in a post above, I would like to discuss the how's of this subject.

I raise primarily catts and most of them are hybrid, but I do have several species catts that I've read need a winter rest.

The little ones and the teenagers, I treat like any other cattleya during winter. I want them to grow bigger and get strong.

But the blooming size are the ones that trouble me. They don't wait until finished blooming to put out new growths. So my questions are;

Do I begin to withhold water even though they already have new growths up to 2-3 inches tall?

If I do this, will these new growths be stunted?

If I don't give them a winter rest, will they bloom next season?

Why are they putting out new growths so quickly?
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  #2  
Unread 10-26-2008, 05:10 PM
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If you have growth, then water as normal because you will stunt the growth if you force it into dormancy. As soon as the growth is mature, stop all fertilizer and withhold water until you get significant p-bulb shrivelage. Then water as neccessary to maintain that shrivelage without letting the bulbs get fatter or skinnier.
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  #3  
Unread 10-26-2008, 05:20 PM
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I don't have any species cats, but do have a few intergenerics, and mine seem to always bee in a combination of growth and flower. They will flower from nearly mature pseudobulbs, and at same time start new growths. I'm thinking they will grow themselves to death if this keeps up.
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  #4  
Unread 10-26-2008, 07:05 PM
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Debs it depends on the species. Some species don't really rest, some want a hard rest for six months, some don't rest until after they bloom in late winter.

List what you have for more specific rest periods.

Brooke
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  #5  
Unread 10-26-2008, 07:16 PM
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Hmm...this is a great question. I relatively recently got my first and only Cattleya, C. luteola. According to Jay Pfahl's site, it requires a "distinct winter rest". It has just finished opening a leaf on it's newest growth and is in sheath. Not sure if I should go ahead and put it over with my Dendros.

IOSPE PHOTOS
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  #6  
Unread 10-26-2008, 07:22 PM
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Debs,

I have some of the same questions that you have, so thanks for creating this post. :thanxs: I'm giving Brooke my list of species...hopefully yours are among them too.

Brooke, here is a list of my cattleya species. What can you tell us about their rest periods?
  1. C. amethystoglossa
  2. C. aurantiaca
  3. C. bicolor (cork mounted)
  4. C. bowringiana
  5. C. bowringiana var. coerulea
  6. C. dowiana var. aurea
  7. C. dowiana var. rosita (cork mounted)
  8. C. forbesii
  9. C. granulosa (cork mounted)
  10. C. guatamalensis
  11. C. harrisoniana
  12. C. iricolor
  13. C. labiata ‘Sherwood Forest’ AM/AOS
  14. C. leopoldii 'Mendenhall'
  15. C. loddigesii var. alba
  16. C. lueddemanniana
  17. C. mossiae var. coerulea
  18. C. percivaliana
  19. C. schilleriana (cork mounted)
  20. C. skinneri
  21. C. violacia (cork mounted)
  22. C. walkeriana var. coerulea

Thanks!
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  #7  
Unread 10-26-2008, 07:58 PM
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I don't have aurantiaca, bowringiana, granulosa, labiata, or the violacia.

The ones I do have and can remember sitting here - do not dry out the forbessii, harrisoniana, leopoldii, leuddemanniana or the walkeriana. If mounted and the sun is shining, I water the mounts. If potted, they get watered every 5-7 days depending on how many days of sun they get.

The ones with the distinct dry period are mossiae and dowiana, both six months. The quickest way to kill a dowiana is cold, wet potting media. For these two plants, if it is sunny, I mist the exposed roots. If I start to see shriveled pbulbs, I drizzle water around the edge of the pot, but not heavy water in the middle of the pot.

The amesthyglossa needs a winter dry out (4-5 mo?) and this one I water about every two weeks, lightly.

The percilivaliana, skinneri, schilleriana, iricolor I can check tomorrow when I go to the g/h. I think perci rests after bloom but won't swear to that one.

I put tags on all my pots stating temps, dry out, bloom time etc. so I don't have to remember the details on each species and then group them together if I can.

Almost forgot, my guatemalensis I treat as a hybrid since it is a natural hybrid between two species and I water it whenever the hybrid catts get watered. It is just starting to bloom now.

Brooke
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  #8  
Unread 10-26-2008, 10:05 PM
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Brooke...Thank you so much! I will have to watch my dowianas...one is mounted and the other in a pot...the potted one is in active growth right now with 2 p-bulbs forming. I believe I would ahve done damage if not death to these and others I've added this year without your advice.

Thanks again to Debs for creating this post!
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  #9  
Unread 10-27-2008, 12:25 AM
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Quote:
Originally Posted by whygreenberg View Post
I relatively recently got my first and only Cattleya, C. luteola. According to Jay Pfahl's site, it requires a "distinct winter rest". It has just finished opening a leaf on it's newest growth and is in sheath. Not sure if I should go ahead and put it over with my Dendros.

IOSPE PHOTOS
Ive heard a lot of conflicting reports on this species. Sometimes a source says that these plants need a rest while others say that no rest is needed. Anyone with experience have any advice??
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  #10  
Unread 10-27-2008, 08:56 AM
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I gave my luteola a rest last year and up until a few months ago, thought it was a lost chid! It now has two new growths coming up...and it is staying in general population for winter
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