Jim: Great question...and I guess I'm speaking of both, although I haven't performed a quantitative analysis. I've been a miserable failure with the Dutch tigridia stock planted in both spring and fall. 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: > Tony Avent wrote: “ We have tried for years to grow tigridia from Dutch > sources with no > > survivability. When I was visiting growers in Holland, they blamed the > > lack of hardiness on virus, but I haven't been able to confirm this and > > wonder if it's not just genetics. Finally, about 10+ years ago, we got > > plants grown from wild collected seed from Yucca Do Nursery. These have > > survived and flowered for the last decade. We occasionally offer them > > as does Yucca Do.” > > > > Tony, when you write “survivability” and “hardiness” do you mean winter > survivability and winter hardiness in the open garden? Or does it refer to > the rapid deterioration of such stocks under your conditions? > > > > I’ve found Dutch Tigridia pavonia to be reliable when dug and stored dry or > moist for the winter. And I’ve known plants overlooked at digging time to > survive the winter and bloom the next year here. > > > > On the other hand, I’ve found it difficult to get colors as described in the > catalogs. > > > > Does anyone know if the color variants offered by the Dutch are seed grown > strains or if they are clones? I’m inclined to believe that they are seed > grown strains because I have an old price list from pre WWII days from a > grower in the Pacific Northwest who offered many Tigridia pavonia color > variants as seed grown strains. That at least proves that it can be done, > but of course it is no comment on the current practice of commercial > growers. > > > > > > > > Jim McKenney > > jimmckenney@jimmckenney.com > > Montgomery County, Maryland, USA, 39.03871º North, 77.09829º West, USDA zone > 7 > > 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/ > >