Late last night I got handed a clump of water lily rhizomes from a neighbour who's wife is making him fill in his pond /cry These rhizomes have no stem and no roots that I can see (I need to do a closer inspection) They look like a canna lily rhizome. My question is what do I do with this? Every lily planting instructions I have found talks about the roots and the stems... which these have neither. Should I put them in water until they start showing some growth, and then plant them? Are they dead? I would really appreciate some help!