Jim: We grow the xHomoglad hybrids, which are primarily G. tristis. We have had them here through 6F with no problem and Cole Burrell tells me there hardy in his garden, probably Zone 6b/7a. These are truly amazing plants. Tony Avent Plant Delights Nursery @ Juniper Level Botanic Garden 9241 Sauls Road Raleigh, North Carolina 27603 USA Minimum Winter Temps 0-5 F Maximum Summer Temps 95-105F USDA Hardiness Zone 7b email tony@plantdelights.com website http://www.plantdelights.com/ phone 919 772-4794 fax 919 772-4752 "I consider every plant hardy until I have killed it myself...at least three times" - Avent Jim McKenney wrote: > Jim Waddick asked: " Just how hardy is G. tristes? HAs anyone in a cold > winter climate tried it outdoors?" > > I grow it in my protected cold frame; when I have enough to spare, I'll try > some in sheltered spots in the garden. I've heard or read (but don't > remember where) that it's been grown in zone 7 gardens. > > For me it has definitely been a winter grower, and so I frankly doubt its > long term success in the open garden. But evidently different forms exist - > Mary Sue mentioned a late flowering form once, and that might be one to try > in marginal gardens. > > > Jim McKenney > jimmckenney@jimmckenney.com > Montgomery County, Maryland, USA, 39.03871º North, 77.09829º West, USDA zone > 7, where the big Allium are blooming now. > > My Virtual Maryland Garden http://www.jimmckenney.com/ > BLOG! http://mcwort.blogspot.com/ > > Webmaster Potomac Valley Chapter, NARGS > Editor PVC Bulletin http://www.pvcnargs.org/ > > Webmaster Potomac Lily Society http://www.potomaclilysociety.org/ > > > > > > > > _______________________________________________ > pbs mailing list > pbs@lists.ibiblio.org > http://pacificbulbsociety.org/list.php > http://pacificbulbsociety.org/pbswiki/ > >