Please help ID
My SIL had these plants in her yard she wanted rid of - they had been there for 12 years and she usually just mowed over them so she had little info . I dug up a clump and they had huge bulbs . She said they had purple flowers and get about 3' tall . I thought they may be iris but they have leaves that look like daylillies . I have a photo of them prior to digging up and a picture of one of the bulbs after I dug and divided them . I have about 250-350 bulbs here and would kinda like to know what they are before planting them . Anyone have Glory of the Snow ? Could these be that ?