I started a program to dig them in summer when dormant and then I replant the area sparsely, and use the extra rhizomes to plant in other beds. Those come up the next year sparsely, but bloom-
into a delightful patch of flowers that suppress grass, but do best in shade to part shade-
I surveyed some of my beds that used to be overrun with weeds, some of them are getting close to being filled in sufficiently with successful plants to keep weeds from coming in.
Another ephemeral that I am enjoying is Lunaria annua, the Money Plant. I have 2 colors, white and the usual purple. They sow themselves delicately and like shady places, so are a welcome accent with heart-shaped leaves. And after the seed pods dry out, they make lovely silver dollar-sized shimmering dried floral arrangements. I also learned they have an edible tuber like a parsnip-rooted parsley, and may actually try some out this year.
Happy gardening, Hannah