When I get some time, perhaps after Christmas, I have a big collection of Ipomoea pandurata seeds to donate to the PBS-BX. These were collected here in Cincinnati, Ohio (USDA Zone 6, almost Zone 5). The seeds themselves are works of art. They have a nice "robe" of "fur" which makes them look like royalty. Unless you've seen them, you just can't appreciate what I'm trying to describe! Dennis in Cincy