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'Thor' rose Reviews & Comments
Discussion id : 130-986
most recent 3 JAN 22 HIDE POSTS
 
Initial post 3 JAN 22 by CybeRose
Just for reference, I have pics of the 'Thor' at San Jose Heritage in bloom in March, April, July and August. As I recall there were always at least a few blooms when I visited the garden. If this is not the real 'Thor', I'd like to know what it is.
Karl
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Discussion id : 127-356
most recent 4 MAY 21 HIDE POSTS
 
Initial post 4 MAY 21 by Rosewild
Carl Luhn of UC Davis gave me this rose in 1987 with the name 'Princesse de Bearn'. He also said it came from Phillip Robinson of Sebastopol. The rose closely resembles 'Princesse de Bearn' , an 1884 Hybrid Perpetual from Louis Lévêque Fils but it is not listed in the catalog from Vintage Gardens. In the photo posted at 'Princesse de Bearn' by member Mashamcl a tag is visible listing the source as the Huntington Botanical Gardens.
In 1989 Phillip visited my garden and corrected the identity to Michael Horvath's 1940 rambler 'Thor'. Unfortunately at that time I did not confirm with him Carl's claim the rose was from Phillip, so knowledgeable, or any other valuable details. Over the years it has never grown very high but that may be due to insufficient watering. This year in spite of our drought it is blooming profusely. So I decided to do a little investigation. I randomly picked three flowers and counted their petals. The result was 59, 56 and 59 petals. That's well within the numbers listed for 'Thor' of 56 to 60 while the count for 'Princesse de Bearn' is listed as 26 to 40. So I think Phillip's identity as 'Thor' is the best one.
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Discussion id : 25-789
most recent 16 DEC 14 SHOW ALL
 
Initial post 28 APR 08 by Cass
Looking at this rose after nine years in my garden, I have to wonder about the species components in its parentage. Thor has nothing of the species about it and resembles other modern hybrids. The foliage does not resemble Rosa setigera, and nothing about the plant resembles Rosa xanthina. As a complex hybrid, it's a shame to see it lumped with the Large-Flowered Climbers. It's a unique rose, more like a climbing Hybrid Tea than anything else.
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Reply #1 of 8 posted 20 JUN 08 by Cavallo
Well, Cass - perhaps someone else has noticed this before, but if you check this (somewhat ridiculous) link;

http://www.google.com/patents?id=dPhzAAAAEBAJ&pg=PP2&lpg=PP2&dq=%22President+Coolidge%22+rose+Horvath+-thor&source=web&ots=Urus8EUoyJ&sig=2PX2L1mWp11l_eL6FR-r1FwcJ7E&hl=en&sa=X&oi=book_result&resnum=8&ct=result#PPP1,M1

...you'll see a patent for what really seems like Thor, although no mention is made of any name for the new variety. The patent states a lineage that involves only Alpha (setigera x sempervirens) and Chateau de Clos Vougeot. No mention is made of R. xanthina. If this is the patent for Thor, maybe that explains things a little bit, since having seen Thor up close (and hopefully I'll have one next year!) I have to agree - it's hard to see any xanthina in there, at least, let alone the others.
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Reply #2 of 8 posted 20 JUN 08 by jedmar
The patent seems quite clear that the parentage does not include R. xanthina. We added the reference and made appropriate modifications.
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Reply #3 of 8 posted 21 JUN 08 by Cass
Nice find! Modern Roses 12 confirms that Plant Patent No. 387 is the patent for 'Thor.' I haven't yet researched my older American Rose Annuals for the source of the parentage included in Modern Roses, but I'm much more satisfied with the parentage reported in the patent abstract.
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Reply #9 of 8 posted 16 DEC 14 by Michael Garhart
I have to wonder why Sempervirens was used over Wichurana.
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Reply #5 of 8 posted 20 OCT 10 by Cass
I'm back reviewing the oddities of the rose in commerce in the USA as 'Thor'. It's provenance isn't solid. The source plant was an unlabeled rose in the San Jose Heritage Rose Garden. That garden was planted within a relatively short period of time in the mid-1990's, with roses sent from all over the USA and Europe. Labels, being labels, disappeared on occasion, and this was one. The blooms attracted attention, and in the early 2000's, someone came up with the attribution 'Thor', and it has stuck for this long. But there are problems. First, there is nothing of <i>Rosa setigera</i> in the plant. Second, it doesn't really climb. It leans with an awkward, gawky habit. Third, it reblooms. The color and form of the blooms is completely unique, and that color is what led me to a rose with identical blooms: Louis Lens' 'Epoca.' At this point, we do not know whether Thor is Epoca or Epoca is Thor or if both are wrong, but we are trying to trace the provenance of Epoca that is now being sold. Take a look of 'Epoca' on HMF:
http://www.helpmefind.com/rose/l.php?l=2.31663&tab=36

Then take a look at 'Epoca' at the Louis Lens Roses:
http://www.lens-roses.be/index.dhtml

I believe that Thor in commerce in the USA is 'Epoca'.
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Reply #6 of 8 posted 26 MAY 11 by ninadambra
the Thor i bought from antique rose emporium of texas is most certainly not epoca.
it fits stephen scanniello's description in climbing roses exactly: a massive, once blooming climber with medium fragrance and large, full petalled dark red flowers.
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Reply #7 of 8 posted 26 MAY 11 by Cass
What is the source of ARE's Thor?
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Reply #8 of 8 posted 15 OCT 12 by mtspace
I have purchased Thor from ARE and planted it in two gardens. In the first it had not grown to climber proportions by the time I moved, but the rose certainly had a kind of vigor and disease resistance absent all my hybrid tea roses. The flowers were quite large, but there was a certain shapeliness to them as they opened that seemed qualitatively different from that of all hybrid tea roses I can think of. The color was definitely purplish crimson, nothing like the maroon color of Epoca depicted at Lens. And it was not at all variable. The canes were somewhat lax in a significant departure from a hybrid tea rose habit. When it bloomed, I was frequently prepared to pronounce it my favorite rose in the garden. In zone 6b, it definitely was not remontant.

I have planted it here in Arizona zone 7b, too. It grows just north of a dense cedar where it gets zero hours of direct sunlight per day; but if it were to grow maybe three feet taller it will have eight or ten hours of light. It has not, therefore bloomed. It has made a few ten or twelve ft long canes well provisioned with large, dark green foliage. This is its third location here in two years. So it is a rose that has endured a great deal of adversity, growing better than most roses with full sunlight and a fixed location. It takes a rose with a peculiar kind of vigor of root and branch - a vigor rarely found in modern roses - to tolerate the rather extreme insults I have piled on this rose. I have heard mixed accounts of the effects of R. setigera on the metabolism of a rose bred from it. The one that I have been acting on- heavily influenced by the heritage of Baltimore Belle I believe - is that R. setigera imparts vigor, cold hardiness, shade tolerance, good branching, and large flowers. And so far I'd have to say that guidance seems consistent with my own experience with Thor.

Of course I cannot be certain this is the rose bred by Horvath. Should some kind of genetic testing rule out the possibility that this is the real Thor, my experience suggests that those who grow the rose named Thor from ARE would be likely to continue thinking of it in greater-than-life terms, imbuing it with god-like qualities, planting more where there is room in their gardens, and calling it Thor.

BTW: Cass I think you did a great job of capturing some of those god-like qualities in your photo of Thor. .
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Discussion id : 8-196
most recent 22 APR 05 HIDE POSTS
 
Initial post 20 APR 05 by Kat Lee
I am looking for a good dark red, something that looks like thor, but doesn't climb. Preferably not a H.T., maybe a OGR? Any suggestions? Thinking about Tradescant...
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Reply #1 of 1 posted 22 APR 05
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Reply #3 of 1 posted 22 APR 05
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Reply #4 of 1 posted 22 APR 05 by Marina's Garden. Crawfordville, FL
Take a look at Henry Nevard, Tradescant, Falstaff, The Dark Lady, William Shakespeare 2000, Rouge Royale, L.D. Braithwaite, Othello. Maybe you like some of them.
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