Wild Roses offer fragrant flowers for infusing cordials and then in the autumn, the rose hips from the rosebush provide a natural source of vitamin c.  Otherwise known as itchicoos, children hoping to prank their friends would unleash the itchy seeds from inside a rosehip down the unsuspecting back of a victim.  Once cooked and sieved, rosehips also make an excellent base for ketchup, and their jammy flesh can be used as a tomato substitute, just make sure to not eat the seeds.