mutiflora root stock
Is it true that roses on multiflora root stock do not do well in alkaline soil? My soil is alkline, and my own experience suggests the answer may be yes. The ones I planted in pots (with acidic potting soil) do MUCH better than those planted in the ground. Also, all my grafted ones on Dr. Huey seem to do much better than the ones on multiflora. However, what's puzzling, though, is that R. Multiflora thrives where I live. It is literally everywhere, growing to two-story tall or even taller. o at least on paper, plants on multiflora should do very well. (I actaully liked RM until I saw, after studying postings here, RRD on some of the plants in my neighborhood.)
Does anyone have an explanation for this or am I missing something? Or the multiflora the Canadian nurseries use is different enough from those that go gangbuster near where I live.
On another note, would "acidify" the soil help for plants on multiflora? The thing is that I use a lot of compost for the ones I planted in ground and I use peat moss. Not sure what else I can do. Fertilizer for acid loving plants? Any suggestion?
Thanks in advance.