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  #21  
Old 06-09-2011, 08:37 AM
epiphyte78 epiphyte78 is offline
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alessandro, many orchids also experience worst case scenarios in their native habitats! Here's a passage from "The Orchidaceae of The Bahama Archipelago - Taxonomy, Ecology and Biogeographic Patterns"....

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The Isles of June epithet, referred to earlier, was severely strained, when in the early morning hours of 19 January 1977, seven years after the last entry in Tables II and III, light snow fell on the islands of Grand Bahama, Great Abaco and New Providence as well as in southern Florida. In addition, frost formed in localized depressions on these islands and on Andros. This was the first time in recorded meteorological history that such a phenomenon had occurred. We visited these islands approximately one month after this extraordinary event in order to assess its effect on the tropical flora. We could find none. We feel this attests to the surprisingly eurythermal resiliency of the Bahamian flora and it might suggest that the remnants of cold-tolerance still exist in the populations from the Wisconsin glaciation.
Australia, Brazil, China, Mexico, etc. all experience temperature and moisture fluctuations. For example, an orchid grower in Brazil wrote to me that Cattleya tenuis experienced a 7 year drought in its native habitat. The problem is that we haven't been monitoring the extreme temperatures where most of the epiphytic orchids grow as long as we have been monitoring the extremes in more developed countries.
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  #22  
Old 06-09-2011, 09:34 AM
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alessandro, here's my list of eurythermal and fragrant orchids.
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  #23  
Old 05-26-2020, 07:15 AM
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Quote:
Originally Posted by epiphyte78 View Post

So if you live in any of these locations... Southern Australia, New Zealand, Central to Central and Southern Argentina and Chile, Central and Southern US (minus Hawaii and S. Florida), Spain, Italy, Greece, Southern Africa, Central to Northern China, Japan, Korea, Northern India, Nepal, etc. ... I'd love to hear what epiphytic species orchids you are growing year around outdoors.
A decade plus on, I've found great benefit from this post and others of yours. I'd love to know how the ones you were testing fared.
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  #24  
Old 05-26-2020, 06:53 PM
Diane56Victor Diane56Victor is offline
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Im really late to the party and not a very experienced grower but Im happy to add the plants I grow.

I live in South Australia, an hour South of Adelaide in a coastal town called Victor Harbor (yes the USA way of spelling harbour)

We don't get the extreme temperature highs experienced by Adelaide. They can get 37C to 45C (98.6f to 113f) sometimes for a week at a time and this is a very dry heat.

Here we get the occasional day with the high temps with the dry heat just like Adelaide but in general temps here are mid to high 20s (75f to 84f) in Summer and probably 5 to 7C (41f to 44f) in Winter.

I found a reference that said the climate here is classed as Csb by the Koppen-Geiger system, if anyone else has knowledge of this weather scale. I will look more into this K-G system myself.

I live a klm from the sea facing open hills where the prevailing wind comes from.
I grow outside under a verandah.
I grow mostly hybrids, Cyms, Dendrobium, got a couple of speciosum growing from cuttings, but they are very slow.
Cattleya, Oncidium Alliance, Sarcochilus, Epidendrum and Tolumnia.
My Sarcs are in a Leca type media which Im planning to change as I feel they dry out too quickly. The rest of the above are in either medium or small bark.
Apart from the Cattleya, which are not big enough to flower yet, everything else has flowered outside.
I have deflasked Tolumnia, mounted them and they are hanging outside. Last night was 9C overnight. So far Im really happy with the way they are growing, they have new fans so hopefully there are new roots behind the moss.

Last edited by Diane56Victor; 05-26-2020 at 08:47 PM..
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  #25  
Old 05-26-2020, 11:10 PM
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Originally Posted by Diane56Victor View Post
I have deflasked Tolumnia, mounted them and they are hanging outside. Last night was 9C overnight. So far Im really happy with the way they are growing, they have new fans so hopefully there are new roots behind the moss.
I'm happy to hear a Tolumnia can handle the SA outdoors, I thought our cool nights wouldn't agree with them. I might try popping one of mine in the shadehouse and see how it goes along with the Onc intergenerics I'm experimenting with.

I'm actually doing the opposite in moving my Sarc's into leca after seeing Kevin Western's nursery and all of his growing in that media (and nearly losing one I bought at a show to root rot).

Last edited by Fredmax; 05-26-2020 at 11:12 PM..
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  #26  
Old 05-26-2020, 11:33 PM
Diane56Victor Diane56Victor is offline
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Im worried about the cool nights too, Im hoping with shadecloth at the back of the shelving (Western side) and on the side (North side) plus the house (Eastern side) and a protecting hill on the Southern side they might be ok. Im willing to take a risk with them as I have quite a few.

Edited...
Forgot to mention the Sarcs. I got mine from Kevin Western too which is why Ive left them in the media they came with as he seems to have great success with the expanded clay ball media. Maybe Im just not watering enough.
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Last edited by Diane56Victor; 05-26-2020 at 11:41 PM..
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  #27  
Old 06-02-2020, 03:22 AM
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Quote:
Originally Posted by Fredmax View Post
A decade plus on, I've found great benefit from this post and others of yours. I'd love to know how the ones you were testing fared.
Initially I thought that the cold was going to be the biggest factor, but then it turned out that the orchids that have done the best for me are the drier growers.
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  #28  
Old 06-27-2020, 03:43 PM
EmTee EmTee is offline
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Hi I grow outdoors only without protection other than the eaves. A lot of my orchids are hanging under eaves on the shady side of the house and the sarcs and docks are doing well
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