I am in need of some advice with two dendrobiums I currently have. One of my dendrobiums cane is dead but there are still some live roots, should I cut the cane and if so, will it have an affect on the roots? My other dendrobium has live roots that are surviving without canes and was wondering if it will ever grow a new cane or is it a lost cause with live roots? Please, help me with my dendrobiums.