I've never raised Allium schubertii from seed, so I won't have anything to say about raising it from seed. However, I would like to take advantage of this topic to see what other list member have to say about this species (or these species - read on). The plant in commerce as Allium schubertii seems to be sensitive to wet summers here in Maryland. Winter hardiness is not a problem, but the bulbs sometimes disappear after blooming for me. But not for everyone: a friend grows this species to huge dimensions, much bigger than anything I have seen on first year bulbs. Rix and Phillips, The Random House Book of Bulbs, claim that true Allium schubertii is not particularly cold hardy. On the other hand, a similar species, Allium protensum, is supposed to be very cold hardy. And so that raises the question: is the plant in commerce Allium schubertii or A. protensum? Do our onion experts know their onions? Jim McKenney Montgomery County, Maryland, USA, USDA zone 7, where Iris dichotoma is putting on a really nice display this year, and a so-far unidentified Bubine is blooming modestly.