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Rosa acicularis in Mongolia:
http://greif.uni-greifswald.de/floragreif/taxon/?flora_search=Taxon&taxon_id=1261
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How easy is the r. acicularis to grow from seed?
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#1 of 1 posted
25 AUG 16 by
Wilhelm
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Well, I have grown it from seeds collected in Mongolia. The seeds may take two winters before they germinate. It does well and has nice flowers even in a much warmer climate in Germany. In Mongolia it hardly grows over a foot high. And my German plants are not much higher. Thus I am not sure if the Mongolian/Siberian rosa acicularis is really the same as the American variety. There is also some confusion with rosa davurica. I am in Mongolia frequently and today I have checked again the pine-larch-birch forests at 2000-2500m altitude.Plenty of rosa acicularis here. Nice colouring of the leaves and nice hips. Morning temperatures at the moment around freezing, though today was exceptionally cold. Seems to grow everywhere in undergrowth under the pine trees. Doesn't like so much dry meadows. Pressure from other shrubs or trees does no harm. In winter temperature drops to minus 40 degrees Celsius and below regularly.
http://greif.uni-greifswald.de/floragreif/taxon/?flora_search=Taxon&action=species&gen=Rosa
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Regarding shade, from my experience, Plaisanterie is quite shade tolerant.
I planted her where she could get maybe a few hours of late afternoon sun, but really it did not get even that, as clematis dropped on it halfway the season. Now I cut back the clematis and under it there she is, perfectly healthy, not even leggy 1 meter high and multi-cane bush (as she was about 10 cm high when I planted her it is nice achievement for a first year). Last summer she even bloomed and rebloomed, no disease whatsoever. The only thing that blooms did not have the orangy yellow coloration, but stayed violet-pinkish, not sure though if it was due to the shade, or due to the lack of heat in my climate.
Moving her to the sun this year, as huge clematis and huge thorny rose in one mess is something I rather would not have to deal with. :)
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Your posts are great additions to HelpMeFind - we wish more site guests would share their experience like this.
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#2 of 2 posted
14 JUL 16 by
Wilhelm
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Try shrub clematis (clematis integrifolia). They are going very with Plaisanterie, especially in part shade.
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I have Basye's Purple in front of my house in the middle of Germany next to Rotes Phänomen standing in the shade of a large Thuja tree, 8 feet away from the stem. They are not doing very well in shade. But the difference between these two roses is very marked. The flowers of Rotes Phänomen are larger and they are partly filled, not single. Even the foliage of Rotes Phänomen is fuller, slightly larger, just like most Rugosa. Basye's Purple has slightly more sparse foliage, not quite as crumpled as with most Rugosa and more spindly branches, not easily forming a dense bush, at least not in more shady places. But both show some flowers over the year. The single flowers of Basye's Purple only last a day or two.
I have Therese Bugnet in the same position and she is doing so much better than the other two, all three of them being rugosas. But what a difference!
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