I first came to know Rosa glauca as its former name of Rosa rubrifolia, meaning red-leaved, because they’re tinged with red, as are the stems. Whatever the name, it has arching canes that may get to about 6 or 8 feet tall in time, forming a roughly vase-shaped shrub, and is hardy to a brutal Zone 2 (where I never wish to test it, thank you).The foliage color will be best if the plant is grown in light shade, emphasis on light, but don’t ask this (or any rose) to do in the dark or fungal problems will prevail. In early June here, small (perhaps inch and a half)