Just to let folks know, the marantas, like calatheas have rhizomes. If my plants get too dry during the winter, the leaves turn brown, curl up and the plant goes dormant. I just make sure that the soil doesn't dry out completely. In the spring, I repot, water and place the plant outdoors in a shady area and it starts growing again. If your leaves dry up, don't immediately assume it's dead, it may just be dormant.
