What is this prickly bush please?

in Plants
Could someone please identify this prickly bush please? It's quite sharp, unpleasant and can sting if you touch it with your hand. I would like to trim it back a bit as I don't think it's very attractive anyway and although I use a hedge trimmer on it every year it's generally getting bigger and bigger. Is there a recommended technique for this?
Thanks for any pointers.


0
Posts
"We don't stop playing because we grow old; we grow old because we stop playing." - George Bernard Shaw