Without more information (type of roses), it’s hard to know exactly what to advise here. But we have a recommendation: the American Rose Society has members/clubs in just about every state. Find those nearest you here: http://www.rose.org/resources/societies/. They not only will have knowledge of the plants but being in your area, may very well have expereinced the weather effects. We hope this helps!
Without more information (type of roses), it’s hard to know exactly what to advise here. But we have a recommendation: the American Rose Society has members/clubs in just about every state. Find those nearest you here: http://www.rose.org/resources/societies/. They not only will have knowledge of the plants but being in your area, may very well have expereinced the weather effects. We hope this helps!