This rose has some remontancy. Plants that were growing in hedgerows and were cut back in September when the farmers flailed the hedges. It doesn't do this everywhere but enough to be noticeable as you drive along Devon country roads.

I have become slightly obsessive about this rose.
R. arvensis grows everywhere in Devon, it can be a weed. Flowering in the hedgerows now with masses of R. canina and the occasional R. dumalis, at this time of year a walk along any lane is like a midsummer dream....
I have two big bushes of it in my own garden. Every time I pass the milky white flowers I smell them, I do this in the morning, at mid-day, in the afternoon and evening too, even at night. Regardless of the weather, during a long hot day, after a warm night, in rain or sun, on cold days and humid weather. I must have smelt flowers from a hundred different plants. On warm dry days you can detect the mildest fragrance, after all this is Shakespeare's musk rose, but I have never ever detected a "strong fragrance" as mentioned in this rose's description on HMF.
In addition, a rose that has naturalised in Scotland is possibly hardier than zone 6b, it went down to -18 in my garden and was totally unharmed.

This rose grows everywhere in my part of the U.K. probably the most common wild rose. I have two large bushes in my garden. In my experience it does not have the "strong fragrance" as quoted in the description, in warm dry weather it has a light musky smell. It is also very prone to blackspot.