No need unless you are going to lift them and overwinter indoors, if you need room cut the tops off..,
Go to the web site Nor'east miniature roses and click on growing tips they have a good amount of information there I think you will find helpful. I am not afilliated with them just know there expertese in this is very good.
The immature fruit can have undesirable effects, but the mature fruits appear to be edible. Please check the related web link in 'Canadian Poisonous Plants Information System' on the left for a more detailed explanation.
the pine cone thingy