"Doug Kanter" wrote in message
...
....to plant this spring in a spot where disgusting dog owners like to
stop
their filthy beasts on my property. Shrub must be capable of inflicting
enough damage to send the dog to the vet. I'm thinking of barberry. Open
to
suggestions for other shrub options. The planting spot receives sun for
about 2/3 of the day, and will be buried in snow for 3 months out of the
year.


I don't know if it will grow in your area but the nastiest thorns I've ever
seen are on hardy orange. Usually grown as a small tree, I've heard of it
being used as a hedge. It is a very attractive plant year round with
utterly vicious thorns. I believe it's hardy to zone 6. By the way, I
still laugh every time I think of that "pistol targets in fur jackets"
comment you made a few weeks back.

Keith