Lavender Lassie
This is a very vigorous hybrid musk which is excellent on an arbor or fence, but can also be grown as a shrub.  The medium sized blooms are full of petals and very fragrant.  There is a  fantastic spring flush followed by several more modest blooms in summer and a good fall flush.  It has average blackspot tendencies.  Bred by Kordes in 1960, hardy from zone 4. 
Lavender Lassie with Alchymist