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jofromfrance

Advantages/ disadvantages of different rootstock

23 years ago

I have already asked about multiflora vs canina for my mountain site. Now (Pete Flowers) I read that Lens roses grafts onto R. rubiginosa. Would this be better suited to an altitude of 800 metres, -20° C at night in winter (plenty of snow cover this year, I haven't even been up there yet) with sandy, acid soil ? I think it is the same rose which grows wild in the Alps so perhaps it is happy high up ?

Also, which would be best in the Rhine valley, not so cold, about -15° would be an exceptionally cold night, in general more like -5 or -10 ? Soil clayey, amended to make it less heavy to work. Or does it make no difference ?

I am only interested in OGRs, no teas. Just one noisette , climbing Jaune Desprez which is so lovely that I want to give it a try, otherwise Gallicas, Albas, Damasks, Portlands, HPs, Spinosissima, Hybrid musks. These all in the valley of course. In the mountains only species, moyesii maybe, Gallicas, Albas, Damasks, and I have already planted Ghislaine de Féligonde but I don't know if she will have survived.

Thanks for any answers, Jo

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