Hi, I am not very experienced with plants and I am very worried about my favourite one, so hoping that somebody can help. I have bought this Dioscorea Elephantipes (elephant's foot or Hottentot bread) in September 2019: it was growing well until January 2020 when it started to die back, and it has not shown any sign of activity since then. I have watered it a bit every few weeks. It might simply be dormant, but I am afraid that something might be wrong. It would be very helpful if someone can see if the roots and the plant look fine. Thanks!