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scvirginia 
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Description states : "Do not prune."
In fact it likes to be pruned in a hard way, once in a few years.
It tends to overgrow itself and the lower/earlier branched die or get less vigorous/less flowering.
It produces lots of fresh shoots, that flower very quickly.
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This tendency to overgrow itself and then struggle to maintain overall vigour is very much my experience as well Jay-Jay. We're in Perth, Western Australia, where our winters are very mild and Mme Alfred C flowers beautifully through the coldest months here.
We definitely need to seriously reduce its bulk and length from time to time, or large parts of the plant weaken or die.
Like you say, it responds very well to trimming or to a harder cut back.
It's a rose you see over a very wide range of climate zones, so perhaps the 'Do not prune' advice is for rose growers in much colder climates? Though I'm guessing you have seriously frozen winters Jay-Jay, and the advice is incorrect everywhere.
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Instead of a blanket suggestion to not prune (which seems to have now disappeared), should there be any recommendation for how to prune MAC?
For example, should the recommendation be one of the following standard regimens?:
Remove unproductive wood every year.
Remove unproductive wood every other year.
Cut back by one-half every other year.
Resist the urge to prune this rose too heavily—it doesn't like it!
Thanks for any recommendations you can suggest.
Virginia
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Noisette Roses are most not hardy in the middle of Europe. Aimee Vibert and even Mme Alfred Carrire are the two Noisettes, which did only freeze back a little but do not die!
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I was somewhat surprised to read in the March 1880 Journal des Roses (p.34), a report of which roses did or did not survive the very harsh winter of 1879-80. A correspondent from Chaillevois in northern France wrote that the three roses that resisted the freeze heroically were 'Persian Yellow', 'Aimée Vibert' and a rose whose name was unknown.
I suspect that 'Aimée Vibert' is hardier than HMF has her rated, and wonder if people growing her in colder climes can contribute their experiences of her cold-hardiness.
Virginia
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#2 of 6 posted
5 days ago by
brunob
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In Botanica's roses: the encyclopedia of roses by Beales Peter 2005 it is said that Aimée Vibert's growth hardiness zones (for Europe) are 5-10. (HZ 5 = -28 to -21 C°)
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That equates to USDA zone 6b, which makes me wonder if HMF was Beale's source for Aimée Vibert's hardiness.
I would still love to hear about anyone's actual experience with growing this rose in colder climes...
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#4 of 6 posted
5 days ago by
brunob
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As far as I know, USDA 6b has winter temperatures between -20.6 and -17. 8 C°
which does not seem to correspond to the Hardiness zones reported by Beale (HZ 5 = -28 to -21 C°)
In any case, I live in an area with USDA 5b (Maritime Alps) and I want to plant an Aimée Vibert this autumn. Within a few years and perhaps even sooner I will be able to share my experience
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You're right- HZ5 is more like USDA zone 7a.
I hope Aimée turns out to be a great rose for you. Since autumn planting means the plant won't be well-established before winter comes, will you provide protection for that first winter?
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#6 of 6 posted
5 days ago by
brunob
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I will cover the rose, at least for the first few winters, to protect it from the snow and again in case of spring frosts, which are possible here until late May. However, snow in itself is a good cover against the winter cold.
Of all the Noisettes only 4 or 5 (e.g. Alister Stella Gray, Meteor, Belle Lyonnaise, Boule de Neige) seem to be able to grow in USDA zone 5b (-26.1 to -23.4 C°)
I hope to be able to add Aimée Vibert to these. However, I think, based on my experiences here, that only after a decade or more can anything definitive be said (not all winters are the same!)
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Doesn't conform to description and photos.
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Could it be 'Centennial Star'?
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#2 of 5 posted
10 JUN by
jedmar
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I have reassigned the photo to Centennial Star.
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A pleasure to tidy a file. The photographer was listed as “more than a year ago”.
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