I've grown some lovely alliums this year and I'd love them to grow again next year. Everything I've read says to leave all the leaves on to feed the bulb after flowering but I have a problem here - all the leaves died off as the alliums came into flower, in fact I just had tall stems coming out of the ground with no leaves whatsoever. They looked a bit naked but the flowers were gorgeous! Has this happened to anyone else? If so, did the alliums flower again the following year?