We had a very hard winter in Texas. My Sago is mushy in the center of it as far down as I can reach; however, it has two babies coming out at the base. I removed all the dead fronds but don't know if it will revive or not? My Mexican Fan Palm, over 6 ft tall, turned all brown. When I peel back the top branches, I can see some green with black like charred on the ends. Will it come back, and what can I do to help these?