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'Sempervirens d'Italie' rose Reviews & Comments
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American Rose Magazine, Volume 1922 p. 124 Paralleling this new arrangement of the variety tests, investigations are being started on the value of different rose-stocks by L. B. Scott and Guy E. Yerkes, in connection with their investigations on nursery stocks. The plan for the first year proposes to use as stocks Manetti, R. canina, Mme. Plantier, Seven Sisters; <b>Wax Rose</b>, Ragged Robin, R. cinnamomea, R. setigera, R. rugosa, R. multiflora cathayensis, R. Soulieana, R. multiflora polyantha (a vigorous type of R. multiflora), and some hybrids produced by the late Dr. Van Fleet, of R. setigera X R. Wichuraiana, and R. Jackii X R. Wichuraiana.
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Gardeners' Chronicle, Horticultural Trade Journal p. 136 (1924) He furthermore states that R. odorata is none other than a Rose which has been known in California for thirty years or more, as Maiden's Blush, while it is also known in the southern states as the Texas Wax Rose.
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So now I'm curious about this one. Margaret says some of the Bishop's Lodge roses use this understock (see Reply #18 here: http://www.helpmefind.com/gardening/l.php?l=21.281534&tab=32).
What I'm wondering is why this rootstock went out of favour in Australia, when it seems to be particularly durable under conditions often encountered here. If this one requires hardly any water, and multiflora requires a fair bit more, and given that Hay has clay soils anyway so no advantage to multiflora there, then what are the specific advantages of other rootstocks which led to indica being dropped?
Would it be worth reinstating for some uses?
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Some people think it's too efficient at shrugging off the scion. Judging by the Apricot Nectar which was an impulse buy, one at least of Bunnings' backyard growers still uses it as an understock.
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I don't know who uses what these days, but Dr. A. S. Thomas expounded a little in the 1950 reference.
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Well FWIW, I know Thomas and Mistydowns use multiflora.
I also know that Treloar use a mix of five different stocks. They didn't say what they were, but I assume Huey and multiflora would have to be among them, and possibly fortuniana too. I could ask them for specifics and see what they say.
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Ross Roses and Brian Wagner (sorry, corrected error) in SA use Dr Huey, as they cater largely for people gardening on alkaline soils. In WA, Fortuneana is mostly used, for sandy soils. John Nieuwesteeg uses his own multiflora seedling - I don't know what his brother at Kurinda nursery uses. R indica major was used in SA as late as the 1970s, judging from my first garden.
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The woman I spoke to was at Treloar's Portland branch, in Victoria. When I asked what rootstock they use she said they used five different types (without saying what they were) and also said any of them would be suitable for my area. They don't do specific selections. They just ship on whatever they have at the time, or so I was told.
Anyway, that 1950 reference. What does he mean by the term "dwarf stock"?
Edit: Oh and does anyone happen to know what stock Rankin's uses?
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Possibly the stock used for (dwarf) hybrid teas / floribundas, as against that used for the taller standards. I've added a sentence to that ref. So many times one used to read that a specific rose does well on this or that rootstock, but not on xyz stock. I've added a note to the nurseries' pages on what rootstock they are mostly using. This is valuable information, so keep it coming.
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I get the impression that it's not so much the compatibility between the scion and the rootstock that's the issue, and more the compatibility between the soil and the rootstock. I'll see if Rankins will tell me what they use. I have a Delbard in the garden, and if that's on Huey it may do better if I lime the soil around it.
I suppose the mass market nurseries that supply Mitre 10 would also be using Huey, since IIRC they're based in SA.
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Just had a thought. That famous list of disease-resistant roses from the botanical garden in Montreal doesn't specify either soil conditions or rootstock.
I'd email them again and ask, but they're not very forthcoming with emails. They tend to grumble and tell you to ask at the garden. I did point out that the garden was somewhat inconveniently located for Australians, but don't recall hearing back from them after that.
Perhaps an enterprising Canadian member with easy access to Montreal might consider asking them.
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Gardening Illustrated and Rural and Suburban Home, Volume 6: 244 (May 31, 1884) J. D. The China Rose (Rosa Indica) is a strong growing, climbing Rose, with glossy foliage and large bright pink flowers, almost scentless, which open quickly, and fall to pieces as soon as opened; the wood will not stand frost, but if cut down in the autumn it will make rods 4 to 6 feet high in early summer, which flower freely. Its blooming season is too short to make it worth growing.
The Garden: An Illustrated Weekly Journal of Gardening 28: 242; Sept 5, 1885 J. D. Why has Rosa semperflorens come to be called the common China? Rosa bengalensis is not grown now, neither is it worth growing, as its profusion of flowers tumble all to pieces the moment they open; but that is no reason why the ever-flowering China Rose should usurp the old familiar name of its much more vigorous relation.
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