It's native to Italy, grows wild in western North America. You're more eastern, but the seeds are sold. I bought seeds, they didn't grow so I tipped the compost on part of the garden, they grew I think at least two years later then spread around. I like them, they don't live for long but you will always get more plants from either seed or sometimes from a runner. Bees love it, it attracts species you wouldn't normally see.
https://en.wikipedia.org/wiki/...
