Hi nmushka I sent you an email. Thanks Brenda

Just wanted to point out, multiflora roses won't just spread invasively for the property owner....
From the Plant Conservation Alliance:
"Fruits are readily sought after by birds which are the primary dispersers of its seed. It has been estimated that an average multiflora rose plant may produce a million seeds per year, which may remain viable in the soil for up to twenty years. Germination of multiflora rose seeds is enhanced by passing through the digestive tract of birds."

Soon they'll pop up at your neighbors, & beyond.
These really are horrible invaders, very destructive.

Here is a link that might be useful: multiflora rose facts

I could trade you some hosta for blackberries if you'd like.