I have 12 or so rose bushes that are over 50 years old. They are really looking scraggly, way too tall and thin. I have a couple that are at least 12 -15 feet tall. I plan on prunning them early this spring. How much should I leave? What is the best time to prun? I wondered if we get a warm spell in February or early March if that is too early. When is the best time to prun roses? I really would hate to lose all of these bushes since they've been here longer than me.