I am a clueless gardener and have in general simply cut back whatever I happen to inherit. The shrubs in one of our borders have died over the winter and over half the border needs replanting so I am going to be forced into action. Need to dig out and replant. Need hardy annual plants that want no attention, preferably not too prickly. I know one of the border plants we had was a Choisyu (I can't spell it). Any suggestions would be gratefully received - want hardy annuals.