Ramps - Allium tricoccum

[MaLiorzh]

Anybody grow ramps I.e Allium tricoccum? I've got the European ramsons or wild garlic - Allium ursinum - in a shady spot in the garden and it does very well - self-seeds quite prolifically - but I've tried to grow the North American A. tricoccum from seed twice now with no joy. I planted them outside in a pot in September with peat and leafy compost thinking the'd need to overwinter before germinating in Spring but no luck.

[!potatoes!]

I have a patch I planted in the woods by my house and another at the orchard. both were transplanted, though, not from seed, so I have no insights about germination.

[MaLiorzh]

I'm guessing that if they grow in North America then they experience winter temperatures well below 0°C so perhaps seeds need to spend some time in the freezer before being planted.