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2006 Archived Messages


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MONTHDATEDATEDATEDATEMONTHDATEDATEDATEDATE
January 1-7 8-14 15-21 22-31 February 1-7 8-14 15-21 22-28
March 1-7 8-14 15-21 22-31 April 1-7 8-14 15-21 22-30
May 1-7 8-14 15-21 22-31 June 1-7 8-14 15-21 22-30
July 1-7 8-14 15-21 22-31 August 1-7 8-14 15-21 22-31
September 1-7 8-14 15-21 22-30 October 1-7 8-14 15-21 22-31
November 1-7 8-14 15-21 22-30 December 1-7 8-14 15-21 22-31

March 1—7

From: Roger Grier
To: Orchid Talk list
Subject: Retention of water.
Date: Wed, 01 Mar 2006 17:55

Evenin' all,

Our Jean wrote the following:

Further to what Silvio was saying, it seems incredible but I lost an orchid
through rotting roots and it was in shingle!! It seems to retain water for
much longer than you would expect − Jean

I had a good read of what you said Jean, and tried to understand what you were saying. My questions are as follows:

1. Although your orchid was in shingle, was it sat in a reservoir of water?
2. If the pot was stood on a bench and the water could drain freely, I cannot see how 'solid' shingle could retain water.
3. Were the roots of your orchid in good nick before you potted the plant in shingle.
4. If I had a plant potted in shingle, held it in one hand and poured water through it with the other, I can't see how any water could still hang about over a few seconds.

All of my orchids that are potted in stone chippings have no chance whatsoever of 'retaining' water, that is over and above what the roots take up. What the roots don't want just runs away.

I'm very interested to hear what you tell me/us.

Kind regards, Rocky.

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From: suzanne sadler
To: Orchid Talk list
Subject: Pleiones
Date: Wed, 01 Mar 2006 21:00

I have a number of pleiones. Last year I bought P formosana and P alishan and when they flowered I was enchanted. This year I have added P forrestii and P grangiflora which have come to me already about to flower. I have then resting on a mix of orchid bark and moss and am keeping them moist on a unheated south facing window ledge, putting them outside in a shady spot for the summer and autumn. All is well so far, my bulbs from last year are all sprouting except one which looks small. They have all multiplied.

My question is when do I start 'fattening' up the bulbs for next year and what do I feed them. I have heard that forrestii is hard to keep? Is this true? Could my compost mix be better for them?

Any advice as always gratefully received.

Regards

Suzy

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From: Dr Chong-Yee Khoo
To: Orchid Talk list
Subject: Orchids for Sale: Coelogyne cristata, Dendrobium Ainsworthii, Dainty Gem and gracilicaule
Date: Thu, 02 Mar 2006 00:40

In the next few weeks and months, I will be making available select plants from my collection for sale. These will usually be duplicate plants, which I need to dispose of to make room in my greenhouse.

At the moment, there are four plants I am making available: Coelogyne cristata, Dendrobium Ainsworthii, Dendrobium Dainty Gem and Dendrobium gracilicaule. These are all in flower at the moment. All are artificially propagated, either from seed, keiki or division.

I have placed descriptions of these plants and photos of the flowers on my website, www.dendrobium.org

Go to www.dendrobium.org, and click on the "For Sale" link at the navigation bar on top of the page.

As usual, I am only sending plants out to UK addresses, and the first come first served rule applies. Please email me if you want more information on the plants.

Regards,

Chong-Yee

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From: aeranthes2
To: Orchid Talk list
Subject: Chong Yee
Date: Thu, 02 Mar 2006 09:40

Chong Yee I'd like the Dend 'Dainty Gem' please if it is still available −
Jean

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From: aeranthes2
To: Orchid Talk list
Subject: shingle
Date: Thu, 02 Mar 2006 09:55

Hi Rocky, no to most of your queries. It wasn't in a reservoir of water, the
pot stood on the bench which is made of solid mesh − a wonderfully strong
material given to me by a friendly Garden Centre owner − my lucky day then.
Water funs through the pot and down on to the floor. I should have explained
that it is alpine grit which is quite small. It does retain water − enough
to rot the roots of that plant − don't ask me how but it did. I now have a
Seramis indicator in that type of material and only water when it has been
red for at least a day. With luck it won't happen again. Jean

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From: Ronald Newstead
To: Orchid Talk list
Subject: Re: [OrchidTalk] Orchids for Sale: Coelogyne cristata, Dendrobium Ainsworthii, Dainty Gem and gracilicaule
Date: Thu, 02 Mar 2006 13:00

I am moving my orchid collection to Bath and the new orchid house has been
ordered and should be installed and functioning by the end of April.
I am interested in D. Dainty Gem and C. Cristata. Can you keep them until
May if I pay for them now?

Ron

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From: Sharon Williams
To: Orchid Talk list
Subject: Enc. with rotting bulbs
Date: Thu, 02 Mar 2006 19:45

Please HELP! I just noticed that several of the bulbs of my mature Enc.
cochleata are brown. I removed the offending bulbs and on dissection they
are totally dark brown throughout. except that the brown does not reach the
base of the bulbs so does not extend to the rhizome (thank goodness). Two of
these bulbs are fully ripened bulbs with sheaths, the other two are leafless
old bulbs. Can anyone tell me why this may have happened and what I should
do to protect the rest of the plant. It still has 2 super plump, sheath
laden bulbs which haven't 'sprouted' yet, and 2 previous bulbs still in
spike from over a year ago, plus about 6 others, mostly older with l to no
leaves. It is in lecca and s/h and I have had the plant for over 2 years and
it has been super healthy all the time. Is this something which could be
contagious? Should I cut off the two blooming spikes (I hope not, but will
if I have to to save the plant). There are a couple of dark dots on a couple
of the remaining psbulbs, but this rot came from the inside, not originating
on the outside. The bulbs were not showing rot l week ago, yet they were
full when cut in half!
Thanks for any help you can give.
Sharon In Calgary

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From: Dr Chong-Yee Khoo
To: Orchid Talk list
Subject: Cribb Symposium
Date: Thu, 02 Mar 2006 21:00

RBG Kew is organising a series of lectures on 16th March and 17th March 2006 to mark the retirement of Phil Cribb. The Thursday lectures are on orchid science at Kew, while the Friday ones are on horticulture at the RHS Halls.

Details are in the attached documents.

Then its the RHS National Orchid Show on Saturday and Sunday at the RHS Halls.

Hope to see you at some stage over that weekend in London.

Regards,

Chong-Yee

NB - contact webmaster for copies of documents

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From: Dr Chong-Yee Khoo
To: Orchid Talk list
Subject: Re: [OrchidTalk] Orchids for Sale: Coelogyne cristata, Dendrobium Ainsworthii, Dainty Gem and gracilicaule
Date: Thu, 02 Mar 2006 21:05

Dear Ron,

I'm sorry that the plants have already been reserved for Jean and Gordon.

I may have another plant of Dendrobium Dainty Gem, though. I'll look around in the greenhouse and let you know if I do.

Regards,

Chong-Yee

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From: Dr Chong-Yee Khoo
To: Orchid Talk list
Subject: Orchids for Sale: Coelogyne cristata, Dendrobium Ainsworthii, Dainty Gem and gracilicaule
Date: Thu, 02 Mar 2006 21:05

As Jean and Gordon were the first to reply, I have reserved the plants for them. Thank you for your interest!

Please check the website over the next few weeks and months for new plants for sale.

Regards to all,

Chong-Yee

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From: francis quesada pallares
To: Orchid Talk list
Subject: Re: [OrchidTalk] Orchids for Sale: Coelogyne cristata, Dendrobium Ainsworthii, Dainty Gem and gracilicaule
Date: Fri, 03 Mar 2006 08:10

Hi Chong-Yee,

I'd be interested in Den gracilicaule if there is
still any left.

Thank you,

Francis.

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From: Silvio a Beccara
To: Orchid Talk list
Subject: Re: [OrchidTalk] Catts and hydroponics [was: Catts]
Date: Wed, 01 Mar 2006 08:50

Hi Geoff,

sorry for the late reply.

Thank you for your detailed data about the wicking rates of the different
materials. I think they are very useful (why not publish them on the Web?).
Just one comment: if the rate of wicking is slowest in shingle, then Catts
should be wettest in shingle, less wet in LECA and dryest in perlite,
shouldn't they?

Based on these results, I may try perlite as a substitute to baked clay
pebbles (the LECA I was referring to: mine are about 1-1.5 cm average
diameter). As for air humidity, I am not able, at present, to keep it over
60%, so do you think that one flood per week could do?

Maybe we can keep in contact about the issue of Cattleyas in hydroculture, I
think it is a very interesting point.

Best wishes

Silvio

> I am keeping humidity up with a Jaybird humidifier via a hygrometer − set
> to 70%, which is certainly much higher than I had before − which affects
> things ; and I thought that one flood per week ( using what I buy as baked
> clay pebbles − 12-15mm diameter − and which may be your LECA ) was keeping
> them too wet .This is in the Sep 2004 -onwards period.
>
> Incidentally I have just been doing some capillary rate comparisons − well
> washed Perlite is wicking at a higher rate than LECA , including a further
> size LECA -6-8mm . I also tried ordinary horticultural grit − siliceous -
> the kind you see as shingle on the beaches of Sussex − and nominally 5-8mm
> size . That is lower still.
> The actual rates of wicking (identical conditions for each sample) were
> 250ml for the shingle, 35o for the LECAs and 450 for Perlite . I deduce
> that plants in these various materials , all in the same tray of water,
> would be dryest in shingle, and wettest in Perlite. On this basis, shingle
> would be better for cattleyas,
>
> My recent trials with plants only started in January , so it is too soon to
> think of measuring growth rates until some new roots are made- maybe by
> mid-summer

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From: aeranthes2
To: Orchid Talk list
Subject: shingle
Date: Wed, 01 Mar 2006 09:45

Further to what Silvio was saying, it seems incredible but I lost an orchid
through rotting roots and it was in shingle!! It seems to retain water for
much longer than you would expect − Jean

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From: Roger Grier
To: Orchid Talk list
Subject: Suzy's Peliones.
Date: Fri, 03 Mar 2006 13:35

Hi Suzy,

I have not grown Pleiones for many years, but as no other advice has come as yet..............I will give you my 'Five penneth'.

Your compost sounds fine to me.

You are doing what most people do, and it nice to hear that the bulbs are getting bigger each year.

If I remember correctly, and I am sure the answer will be given by some of our members, or you may be able to search the Internet, it is quite critical to NOT start feeding and watering until the flower buds are apparent.....or something like that. Then, when feeding and watering starts, I would go for something easy to buy, and easy to use, also with all the ingredients that the plants require. 'Tomorite'. It has almost equal ratios of the basic three.......Nitrogen-Phosphate-Potash, and it mixes so damned easy.

As for P. Forrestii, I have no information on this one.

Kind regards, Rocky.

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From: Roger Grier
To: Orchid Talk list
Subject: Sharon's Encyclia cochleata.
Date: Fri, 03 Mar 2006 13:45

Hi Sharon,

Wished you had sent us a photo of it..........must admit though, even I forget how easy it is to take a digital photo of just about anything these days, and it makes things so much easier. You can even take a photo of a part for a kitchen food mixer and take it to the attendant in the store !!!!! Not that I have done it, but a photo is so helpful.

I would cut off ALL the bulbs that are effected to just above the rhizome, as long as the 'rot' has not gone deeper than the cut. Then dust it with cinnamon powder..........easiest thing, as I'm sure you have some in the kitchen.

Bulbs here, bulbs there, you plant sure seems to be nice and large.

You say that your plant is in Lecca and s/h..........what the hell is s/h ? Is it semi-hydroponics? If so, and it is only my thinking.........grow it without the s/h.

I do not know what causes this problem, but I have experienced it in the past.

Just cut away what is obviously affected, and keep a close eye on it.

Best of luck.

Rocky.

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From: aeranthes2
To: Orchid Talk list
Subject: Dend
Date: Fri, 03 Mar 2006 14:45

Thank you Chong-Yee − it was good to be an early bird this morning. I look
forward to the Dend in due course − Jean
Sharon − do you think it could have been rot i.e. overwatered at some time.
The only time I have experienced the type of pseudobulb you describe that
was the problem. If they are soggy to the touch I'd get rid of them flowers
or not to preserve the plant itself BUT see what advice othere members have
to offer first of all.
Good luck with it − Jean

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From: MARK GRIFFITHS
To: Orchid Talk list
Subject: Re: [OrchidTalk] Suzy's Peliones.
Date: Fri, 03 Mar 2006 18:00

hi, it seems my original reply made a few days ago didn't get through? Any way, my reply was...

Hi Suzanne, I think the best thing is to have a look at www.pleione.info run by Paul Cumbleton. I have a downloadable cultural leaflet at http://markgriffiths.org/Pleione1.html

all the best, mark
ps you water after flowering when the leaves are growing

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From: suzanne sadler
To: Orchid Talk list
Subject: Re: [OrchidTalk] Suzy's Peliones.
Date: Sat, 04 Mar 2006 08:25

Dear Mark,

Your reply to me did get through, although I hadn't checked my email for a few says. I looked at the pleione website and downloaded your leaflet and both proved very useful.

Thankyou for your time

regards

Suzanne

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From: Geoffrey Hands
To: Orchid Talk list
Subject: Sharon'sproblem
Date: Sat, 04 Mar 2006 08:30

The cause of rot is not quite as simple as one would hope − there is often
no single "cause" − even if the actual rot is due to a single bacterial
organism . The fact is that all the common bacteria and fungi are always
present in every greenhouse . But with good culture, and strong plants,
they are able to resist . With poor culture , or plants weakened as a
result of some cultural problem in the past, they have lowered resistance .
Some folk speak of the plants immune system being damaged − in the same way
that AIDS damages the immune resistance in our own species , so people don't
actually die of AIDS , they die of pneumonia , or whatever , and the usual
treatment is ineffective because of the AIDS.

As to what the cultural problem may be, it can have been − or continue to
be − a combination of several factors . It is almost certain that at some
time the plant has been too hot/too cold/too wet/too dry/in too low
humidity/in too high humidity / for too short/too
long/over-fed/under-fed/poisened/starved or whatever..... All our plants
have suffered this to some extent, at some time − unless I am somehow
addresing a perfect cultivator ! And in some cases, we push them over the
edge, and they fall to Pythium, Rhizoctonia ( probably Sharon's problem),
Pseudomonas or whatever.

I can recommend a very good book − the best there is ( to my knowledge)
about controlling disease in orchids. I expect its out of print, but worth
chasing via second hand book-sellers etc. It is "Orchid Seedling Care "-
"with especial emphasis on water quality" − which is a kind of expanded
title − but the first 3 words should locate it. The author Bob Gordon -
published by a US company − Laid-Back publications , 1991.

I could tell you a story about the time I was losing plants at a very fast
rate − I used to go watering with a watering can and a wheelbarrow to put
the dead plants in ( the cause was nitrites in the water − in a rural area
where the industry was growing cabbages etc, and the massive fertiliser
dosage led to run off into the ground, contaminating the supply ). The
answer was Reverse Osmosis .
Or the time when it happened again, although I was still using RO − but I
had moved the plants into a pit house, where the humidity was virtually 99%
all the time, the light was much lower than wanted, the diurnal difference
was nil , and I had learnt to use an EC meter , but had not learnt to
calibrate at intervals, and my plants were grossly over-fed.....

Its a long learning curve, is orchid growing . 45 years so far , and still
counting...

Geoff

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From: Ronald Newstead
To: Orchid Talk list
Subject: Re: [OrchidTalk] Orchids for Sale: Coelogyne cristata, Dendrobium Ainsworthii, Dainty Gem and gracilicaule
Date: Sat, 04 Mar 2006 10:55

Dear Chong-Yee
As you will have understood, I can wait!

Ron

Dr Chong-Yee Khoo wrote:

Dear Ron,

I'm sorry that the plants have already been reserved for Jean and Gordon.

I may have another plant of Dendrobium Dainty Gem, though. I'll look around
in the greenhouse and let you know if I do.

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From: Banshee
To: Orchid Talk list
Subject: article
Date: Sun, 05 Mar 2006 04:15

Can anyone assist in finding an article from
AOS Bulletin August 1973 Sophronitella violacea
Thanks for any assistance

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From: Roger Grier
To: Orchid Talk list
Subject: Sophronitella violacea
Date: Sun, 05 Mar 2006 12:05

Hello 'Banshee'

No doubt it's bit warmer in 'Oz' than it is here.

I do not grow this orchid, but is there anything specific that you want to know ?

I may be able to find out some information for you.

Regards, Rocky.

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From: Andy Mckeown
To: Orchid Talk list
Subject: holiday snaps
Date: Mon, 06 Mar 2006 14:00

I've just got back from holiday in Thailand − something of a shock to arrive in Heathrow when it was -5 degrees!

Saw lots of orchids of course though not a lot in flower or not accessible from the ground. Here are a few snaps, not the best quality because although I always bring a tripod it is invariably sitting in the hotel room when I need it.

A I found this growing in deep shade high up in Khao Yai forest. Plicate leaves, spike about 60 cm tall, flowers about 4 cm across. I though it might be a Eulophia − poss E herbacea. Any Ideas?

B A bit of camera shake her − something to do with the fact that in taking this I was lying on my belly looking over a very large cliff face. The crevices in this very exposed rock face were filled with this orchid and you can see that the rhizomes were collecing lots of debris. From the look and discussing them with my guide I though they might be Coelogynes ?

C Saw this C aloifolium growing in someones garden

D These Den anosmums were in a little roadside nursery in the Southern Thailand. Wish mine would do this!

Andy

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From: JIM MATEOSKY
To: digest@orchid-talk.co.uk
Subject: Rodriguezia how old for 1st flower?
Date: Mon, 06 Mar 2006 14:30

Hi,

I have several young (1 yr out of flask) Rodriguezia bractiata and a couple others (not sure of the name yet). Any Idea when the will flower?, What season? How many leaves before we get shoots?? Or perhaps some other benchmark (indication) you can share.
Thanks,

Jim Mateosky
Costa Rica

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From: Gordon Walker
To: Orchid Talk list
Subject: Query
Date: Mon, 06 Mar 2006 16:30

Has anyone bought any of the flasks being advertised recently on eBay and if so what is the general feeling about the condition of the seedlings?
Gordon.

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From: Roger Grier
To: Orchid Talk list
Subject: Andy's photos.
Date: Mon, 06 Mar 2006 18:30

Hi Andy,

No wonder you had camera shake [photo B], that looks to be a very loooooooong way down.

I am with you, I feel sure that it is one of the many Coelogynes

Regards, Rocky.

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From: Geoffrey Hands
To: Orchid Talk list
Subject: Andy's pics
Date: Tue, 07 Mar 2006 07:40

There are a great many orchid genera that we are quite unfamiliar with ,
often looking similar to the ones we do know , and in my experience it is
very easy to say " oh that looks exactly like so-and-so , and I 'know' that
comes from Thailand, therfore it must be..". and if you collect it and
flower it , it will turn out to be something quite different .

I recall on one trip , seeing a lot of plants which we all thought were
Coelogynes, but not in flower , and then further down the mountain we
started to find the same in early spike, and so-on ; a thousand feet lower
down we found flowers out , and it was a quite different orchid which we
identified from the Thai flora we carried, in a genus I had never heard of
, with wispy insignificant drab flowers , and the book said " the flowers
are very short-lived" − which no doubt is why it never made it to being
collected and cultivated.

Remember that there are (say) 20,000 − or is it 40,000 − (you choose)
different orchid species, and it is reckoned that less than 2000 are in
cultivation − this is why !

But interesting pics, Andy. Thanks for sharing them.

Geoff

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From: Geoffrey Hands
To: Orchid Talk list
Subject: Re: [OrchidTalk] Query
Date: Tue, 07 Mar 2006 07:45

I gave up on e-bay after seeing so much scam , and no I won't be tempted. I
also remind you that there was a successful prosecution for selling
illegally imported orchids via e-bay.
I may not like CITEs, but I don't condone breaking the law , and I am sure
that you will agree.
And with the London Show coming up, followed by a replacement for Newbury do
I hear ? and a few other oppportunities in the summer before we get to the
BOGA fayre , who needs a risk ?
I have just ordered some interesting species to be brought to an OSGB
meeting for me in July from a South American nursery. Not flasks , it's
true, but I'm getting a bit old to want plants which I might flower in 10
years time !

Geoff

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From: aeranthes2
To: Orchid Talk list
Subject: Andy
Date: Tue, 07 Mar 2006 07:50

Thank you for sending the photos around Andy. I would have been very pleased
to have taken them − shaky or not. It's a beautiful record of what sounds a
fascinating trip. − Jean

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From: francis quesada pallares
To: Orchid Talk list
Subject: Re: [OrchidTalk] Query
Date: Tue, 07 Mar 2006 08:50

Hi Gordon,

Sunday-biz, the guy who sells those flasks, has a
nursery and sells many flasks through ebay. I bought
four flasks of him in the past. The seedling's
condition is generally very good, and whilst they were
in the flask they were fine. Maybe one or two of the
seedlings may be dead, but I had no fungus problems or
anything with his flasks.
Unfortunately, I have to yet master the technique of
deflasking, as I have lost all the seedlings of two of
the flasks (for catasetums), I have been left with
only one phal. bellina and so far, the best result has
been with a flask of renanthera monarquica of which I
have about 15-20 seedlings growing slowly inside the
propagator.

Hope this helps.

Francis.

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From: Gordon Walker
To: Orchid Talk list
Subject: Query
Date: Tue, 07 Mar 2006 09:10

Thanks Geoff and Francis.
Gordon.

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From: suzanne sadler
To: Orchid Talk list
Subject: Seedling flask query, ebay
Date: Tue, 07 Mar 2006 10:05

I always avoided buying orchids on ebay from international sellers although I have quite a few healthy plants from UK sellers and have experienced no problems so far. I would never risk importing orchids without Cites and as I don't fully understand the process I would rather have a more ordinary but legal collection. Its very tempting but I'm too much of a 'goody two shoes'.

Thats my two penneth

regards

Suzanne

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From: Roger Grier
To: Orchid Talk list
Subject: Buying orchids.
Date: Tue, 07 Mar 2006 18:10

Hi Suzanne,

I know that you say you would never risk buying orchids without the necessary 'Paperwork/permits', BUT, have you ever purchased from the Italian Orchid Nursery that some of us use ?

www.nardottoecapello.it

It is so easy. The plants are so good. The price is better than the U.K.

I am sure Jean and others will agree.

So, take off those 'Goody two shoes' put on your slippers and take it easy, buy from E.U. Countries. I am sure that you will be very pleased.........sit back and just wait for the postman.

Regards, Rocky.

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