I received several bare root lupines by mail order. The roots were a bit moldy, but I thought nothing of it. The mold was a light grey, furry type. I planted them, and they began to grow vigourously. However, now some of them are starting to show severe wilt, usually associated with just one or two shoots of the plant, not the whole thing. On digging them up, I find that the roots are almost gelatinous. Nonetheless, many of the plants are flowering. And advice on how to proceed?