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Author Topic: What is this?  (Read 1581 times)

David King

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What is this?
« on: August 01, 2012, 10:02:52 AM »
Visited Beth Chatto's garden yesterday and saw this growing in one of the ponds.  Anyone know what it is?
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Brooke, Norwich, Norfolk.

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Maggi Young

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Re: What is this?
« Reply #1 on: August 01, 2012, 10:05:07 AM »
No idea! Very elegant isn't it?
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Margaret Young in Aberdeen, North East Scotland Zone 7 -ish!

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mark smyth

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Re: What is this?
« Reply #2 on: August 01, 2012, 10:19:25 AM »
Pickerel?
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Maggi Young

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Re: What is this?
« Reply #3 on: August 01, 2012, 10:29:42 AM »
Oh! The American plant, Pontederia cordata ?  Didn't twig that without the fully developed flower spike. :-[  I didn't know they came from those lovely bracts.
The first of my lessons for  today. :)  8)
« Last Edit: August 01, 2012, 10:31:24 AM by Maggi Young »
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Margaret Young in Aberdeen, North East Scotland Zone 7 -ish!

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Brian Ellis

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Re: What is this?
« Reply #4 on: August 01, 2012, 11:05:00 AM »
Cheers Maggi, we were quite taken by it.  Trust Beth Chatto to have plants we don't know!
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Brian Ellis, Brooke, Norfolk UK. altitude 30m Mintemp -8C

David Nicholson

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Re: What is this?
« Reply #5 on: August 01, 2012, 11:17:54 AM »
Pickled what ???  ;D
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David Nicholson
in Devon, UK  Zone 9b
"Victims of satire who are overly defensive, who cry "foul" or just winge to high heaven, might take pause and consider what exactly it is that leaves them so sensitive, when they were happy with satire when they were on the side dishing it out"

John85

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Re: What is this?
« Reply #6 on: August 01, 2012, 11:25:22 AM »
Pontederia cordata:are you quite sure?I just went to the garden to have a look and they don't look like the picture.Also the top of the leaves of those in the garden are a bit more rounded.
May be another sp of Pontederia?
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ThomasB

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Re: What is this?
« Reply #7 on: August 01, 2012, 12:55:29 PM »
I suppose it's Thalia dealbata.
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Brian Ellis

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Re: What is this?
« Reply #8 on: August 01, 2012, 01:47:14 PM »
Thomas, you are correct I think.  Googling Thalia dealbata Beth Chatto Gardens gets a picture of it exactly where we saw it.  Many thanks ;D
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Brian Ellis, Brooke, Norfolk UK. altitude 30m Mintemp -8C

Maggi Young

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Re: What is this?
« Reply #9 on: August 01, 2012, 01:59:23 PM »
Well done, John and Thomas...... close observation skills to the fore!


http://calphotos.berkeley.edu/cgi/img_query?enlarge=0000+0000+0105+0472   for the Pontederia

http://www.bbc.co.uk/radio4/womanshour/gallery/2008_53_mon.shtml?select=02   for the Thalia

  Busy day for lessons this!  :D
« Last Edit: August 01, 2012, 02:02:40 PM by Maggi Young »
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Margaret Young in Aberdeen, North East Scotland Zone 7 -ish!

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Paul T

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Re: What is this?
« Reply #10 on: August 01, 2012, 02:09:45 PM »
Definitely Thalia dealbata.  If you intend to grow it, bear in mind that it is similar to a Canna if it gets going happily and can increase quite healthily.  I've heard it called a blue water canna, but that was quite a few years ago.  I never did get one because I didn't have the space for it.  Pontederia is another that can take off prolifically if you aren't watching it closely.  ;)  Lovely blue flowers though.  I do still grow a white species of Pontederia, but I had to get rid of the blue after one piece was approaching a metre wide after 18 months and attempting to take over my pond.  I would still like to grow the Thalia one of these years, if I can manage to get some acreage somewhere (not likely to happen soon unfortunately!  ::)).

So good to see you got an answer so quick, David.  Isn't this forum just brilliant!!  8)
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Cheers.

Paul T.
Canberra, Australia.
Min winter temp -8 or -9°C. Max summer temp 40°C. Thankfully, maybe once or twice a year only.

David King

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Re: What is this?
« Reply #11 on: August 01, 2012, 02:42:51 PM »
Quote from: Paul T on August 01, 2012, 02:09:45 PM

So good to see you got an answer so quick, David.  Isn't this forum just brilliant!!  8)

Amazing. Where else could you do it?
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Brooke, Norwich, Norfolk.

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John85

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Re: What is this?
« Reply #12 on: August 01, 2012, 06:31:30 PM »
How hardy is Thalia dealbata?
On the site of a nursery:frost hardy
On the site of th RHS:H1 greenhouse
Who is right?
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David King

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Re: What is this?
« Reply #13 on: August 01, 2012, 07:38:09 PM »
Quote from: John85 on August 01, 2012, 06:31:30 PM
How hardy is Thalia dealbata?
On the site of a nursery:frost hardy
On the site of th RHS:H1 greenhouse
Who is right?

I don't know who is right but at Beth Chatto's garden there are several large clumps in the ponds and I cannot imagine that they are removed each year and therefore must stay in the water.  They may of course have some in pots just in case.
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Brooke, Norwich, Norfolk.

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Maggi Young

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Re: What is this?
« Reply #14 on: August 01, 2012, 08:49:08 PM »
From the Royal Botanic Garden Edinburgh living collection database, it seems to live in a glasshouse. :-\
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Margaret Young in Aberdeen, North East Scotland Zone 7 -ish!

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