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Author Topic: Trillium 2010  (Read 44282 times)

gote

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Re: Trillium 2010
« Reply #120 on: May 19, 2010, 08:46:10 AM »
At last also my Trilliums havs started...Trillium undulatum is not too easy in my place and demands a cool situation.

T. undulatum is generally considered ungrowable, so your flowering of it is truly remarkable.

From what the references say, I've gathered that it demands extremely acidic, boggy conditions, but your remark about needing a cool situation makes me think it does not like warmth at any time. Rather like Cyclamen purpurascens, which is a roaring success in Chicago with its cold winters, but an abject failure in my  mild climate.


I have had it for nearly ten years. According to some people the problem is that in a warm summer night it will burn more energy than it could gather in the day whereas in a cool night it will have less expenditure. I do not know wether this is true but my experience is that a cool situation in my garden is better than a warm and my late friend Zita who gardened in 1-2 zones warmer climate had great difficulties with it. I may add that I have 18 hours of daylight this time of the year.  I grow it in my ordinary soil which is rich in humus, well drained with a low ph but supplied with Ca from bonemeal. It is not a boggy situation but i irrigate overhead in dry weather and Chrysosplenium alternifolium grows (too) well nearby.
Cheers
Göte
 
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Mid-Sweden

Lesley Cox

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Re: Trillium 2010
« Reply #121 on: May 19, 2010, 09:46:58 PM »
Gote, few if any other Forumists have been able to show Trillium undulatum and I think this is not your first time? We are so lucky to see it at all so you should be be very proud. Look at the number of times it has been viewed (enlarged) compared with the others in the same batch. :)
Lesley Cox - near Dunedin, lower east coast, South Island of New Zealand - Zone 9

Lesley Cox

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Re: Trillium 2010
« Reply #122 on: May 19, 2010, 09:51:03 PM »
I shall no doubt be slammed for asking the question, but I wonder why anyone would prefer 'Jenny Rhodes' to the pure, three petalled form of ovatum or grandiflorum? ???
Lesley Cox - near Dunedin, lower east coast, South Island of New Zealand - Zone 9

TheOnionMan

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Re: Trillium 2010
« Reply #123 on: May 19, 2010, 11:04:18 PM »
I shall no doubt be slammed for asking the question, but I wonder why anyone would prefer 'Jenny Rhodes' to the pure, three petalled form of ovatum or grandiflorum? ???

Holding my tongue on that one :-X :-X :-X
Mark McDonough
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arisaema

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Re: Trillium 2010
« Reply #124 on: May 20, 2010, 07:50:47 AM »
the suspense is killing me, a hybrid between T. vaseyi x T. grandiflorum blooming for the first time since I played around with pollen some years back.

Any updates..?

gote

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Re: Trillium 2010
« Reply #125 on: May 20, 2010, 08:20:43 AM »
Gote, few if any other Forumists have been able to show Trillium undulatum and I think this is not your first time? We are so lucky to see it at all so you should be be very proud. Look at the number of times it has been viewed (enlarged) compared with the others in the same batch. :)
I am just lucky in so far that my climate is not too bad for it. I am unable to grow some others; mainly those from the US south east. Rivale is also seems impossible. In my part of the world plants are usually killed by the winter cold. I am slowly beginning to understand that some people have plants killed by summer heat.
Thank you for the kind words anyway.
Cheers
Göte     
Göte Svanholm
Mid-Sweden

arisaema

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Re: Trillium 2010
« Reply #126 on: May 20, 2010, 10:12:22 AM »
Some Trillium flowering here;

T. simile
T. erectum f. album (bought as simile from a reputable UK nursery)
T. flexipes x erectum
T. albidum parviflorum - thanks, guys!
« Last Edit: May 21, 2010, 06:48:29 AM by arisaema »

arisaema

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Re: Trillium 2010
« Reply #127 on: May 20, 2010, 10:48:36 AM »
Forgot to mention the size of T. simile, it's quite massive, and the flowers are larger than T. grandiflorum.

Do clumping forms of T. catesbaei exist? I have a tuber that's at least 10 years, and it's only produced a single offset in all these years.

Anthony Darby

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Re: Trillium 2010
« Reply #128 on: May 20, 2010, 11:11:46 AM »
I am extremely surprised at seeing a cross between grandiflorum and vaseyi. I thought crosses between anything other than closely related trilliums was not possible.
Anthony Darby, Auckland, New Zealand.
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Afloden

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Re: Trillium 2010
« Reply #129 on: May 20, 2010, 12:04:09 PM »
 Mark, would love to see the supposed vaseyi X grandiflorum hybrid. It does not seem that it would be a possible cross based on genetics. It may have been the mentor effect -- pollen of another, but actually accepted its own pollen and self pollinated. Usually these plants are smaller though.

 Arisaema, the T. albidum looks like T. parviflorum. Also please let me know the scent on your T. simile. Wet dog? I spent some time with one of the Trillium taxonomy experts recently and he is somewhat on my side in thinking that true simile is much rarer than thought. What is often sold as simile are intergrades of T.simile and T. erectum album, thus the larger size and vigor. True simile is also sweetly fragrant.

 As to T. undulatum -- it does not require boggy conditions. I have seen it this year (and last) in dry acid woods, on rocks growing just under a layer of moss, and in gravelly trail sides. The only shared features between all the sites I have seen it at are soil pH of 6 or less, and the elevation where the temperatures remain cool and likely never get above 85F and have night temperatures that drop into the low 50'sF or colder.

 Aaron Floden

 
Missouri, at the northeast edge of the Ozark Plateau

TheOnionMan

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Re: Trillium 2010
« Reply #130 on: May 20, 2010, 12:42:49 PM »
Arisaema,(Anne is Astragalus!!) really like the look of T. simile, such crisp triangular shape, clean white with dark center.  Love the flexipes x erectum hybrid, reminds me of the color plate in Fred Case's "Trilliums" book showing the range of color forms of such hybrids.  I agree with Aaron, your last photo is a ringer for T. parviflorum, matching photos in the Trilliums book.

There will be an update on my T. vaseyi x grandiflorum hybrid (I'm quite convinced that is what it is).  It was cold and rainy all day yesterday, so the bud held off from opening.  The two species are planted close to each other, and when they're in bloom, I can bend the stems to make the flowers touch  :o :o :o, just for the fun of it, to see if indeed they can hybridize.  This seedlings, and a few others that haven't bloomed yet, were the result of such fraternization.  It's frequently repeated that vaseyi crosses with rugelii, and that only closely related Trillium species will hybridize.  Well, my plants don't necessarily know these "facts" and might be more willing that one might think.  

Checking this morning, the garden is soaked, the sun is shining, the flower is beginning to open... I'm so excited, the large anther/stamens are WHITE instead of maroon!  Might be another day before the flower is fully open.  By the way, my frisky grandiflorum and vaseyi flowers co-mingled again this year :o  I wonder if my other stupid hybridization recently will take (decumbens x grandiflorum)... I'll let you all know in 5-6 years.

Previously in this thread I showed a hybrid T. rugelii x stamineum (self sown), and I think some of the T. lancifolium seedlings that are now mature and flowering are also hybrids, as the leaves are erect and broader, and don't recline backwards... these trillium might be more promiscuous that people realize.
« Last Edit: May 20, 2010, 01:12:35 PM by Maggi Young »
Mark McDonough
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arisaema

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Re: Trillium 2010
« Reply #131 on: May 20, 2010, 01:03:33 PM »
Aaron;

So T. parviflorum? It's from that same reputable UK nursery, they may want to check double-check their sources... Petals are 54mm long, 10mm wide and slightly greenish at the base. Plant height is 21cm.

It seems you may be right about the T. simile, only the smallest-flowered clone to the right in the picture is sweetly scented, the rest smell like wet dog or "rotten flower vase water". They came from Gatlinburg, TN.

Mark;

Don't keep us waiting too long!  ;D

bulborum

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Re: Trillium 2010
« Reply #132 on: May 20, 2010, 01:17:33 PM »
Here the newest Trillium grandiforum Red form ;D ;D
special the dark colour ;D ;D is what I like
this was a reputable wholesaler in the past
of course there where also real Trillium grandiflorums in between
but it looks like wild collected rhizomes

Roland
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arisaema

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Re: Trillium 2010
« Reply #133 on: May 20, 2010, 01:25:39 PM »
Roland;

My own T. erectum are from New York so I could be mistaken, but your plants look a lot like T. sulcatum...

TheOnionMan

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Re: Trillium 2010
« Reply #134 on: May 20, 2010, 01:37:12 PM »
Arisaema,(Anne is Astragalus!!)
« Last Edit: Today at 01:12:35 PM by Maggi Young »

Thanks Maggi, I had just realized my mistake (mixing genera-alias-names up), came back to this thread to fix my message, but you beat me to the punch... there's no way to out pace magic Maggi!
Mark McDonough
Massachusetts, USA (near the New Hampshire border)
USDA Zone 5
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