>I have never grown these, but do have an interesting reference. >"Bulbs for Summer Bloom" by John Philip Baumgardt, has them hardy to zone 5 >(Kansas City, MO). He is writing from experience, so presumably it worked >for him. Perhaps he and Jim Waddick have hot springs under their homes? Dear all; J. P. Baumgardt was an inspiration for a lot of local gardens; Great book too. I've grown mixed and color selections of Tigridia and they are either wimps or huge and much too gaudy, but never winter over for me. I admit I haven't really given their best spot, but seems the commercial bulbs are pretty uneven in quality. Jim W. -- Dr. James W. Waddick 8871 NW Brostrom Rd. Kansas City Missouri 64152-2711 USA Ph. 816-746-1949 E-fax 419-781-8594 Zone 5 Record low -23F Summer 100F +