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One of the photos from Gifu, Japan shows a nameplate, presumably from some public garden somewhere, which claims that R. pomifera is a hybrid of R. glauca and R. rugosa. Someone in Japan seems quite convinced, but I can't seem to find any other mention of this. How likely is it? Shouldn't such a cross be sterile?
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There are already glauca/rugosa hybrids. See 'Carmenetta'. It is definitely not sterile. I doubt that R. pomifera is a hybrid of these two species.
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#2 of 4 posted
7 JUN 10 by
Cavallo
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Yeah - my ideas about sterility have changed since 2007. :)
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#3 of 4 posted
20 APR 11 by
Hardy
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Since r. pomifera/villosa is shown on HMF using European illustrations from the 1500s and 1600s, I'd be interested to know how an east Asian rugosa (first introduced in Europe in the 1790s,) managed to cross with (European) rosa glauca, when their native ranges are separated by thousands of miles. Crossing would presumably have had to occur when the roses had overlapping ranges, but I know of no reason to think that they ever overlapped. Absent compelling DNA evidence, I'm very skeptical.
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#4 of 4 posted
20 APR 11 by
Cavallo
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Excellent point. I should have thought of that.
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2010 season: Buds balling from rain, but there's such a quantity of them it's not such a tragedy. Also, many of them seem to be occurring singly on longish stalks - excellent for cutting. It's a bouquet factory.
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Like a lotus flower!
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#1 of 1 posted
22 JUN 10 by
Cavallo
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It is, kind of. A lotus flower no bigger than a dime!
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The description page says flowers are 1 inch. Is that right??? Flowers look bigger in the pix.
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#1 of 2 posted
1 APR 10 by
 Cass
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Yes, the blooms do look slightly larger in this shot that provides some scale:
http://www.helpmefind.com/rose/l.php?l=21.25448
Looks like 2 to 2.5 inches. Maybe someone who grows it will comment.
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#2 of 2 posted
8 JUN 10 by
Cavallo
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Mine has some blooms as large as 3" this season.
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