I purchased this one from buggycrazy who is no longer in the bulb business.
The one in my avatar I purchased as "L. pardalinum" from M-Z Bulb company:
http://www.mzbulb.com/dp.asp?p...
Unlike some of my expensive hybrids, these are next to impossible to kill. Because they branch out underground, they clump up fairly fast. They have an open, airy form in the garden. One of my favorites!