They [the C. bulbispermum Jumbos] originated from seed from Marcelle Sheppard's 'Jumbo' strain over 5 years ago. All parent plants are vigorous and have wintered over in Zone 5 with light mulch. --------------------- Hi, How nice to hear the winter in Zone 5. Hurray for Jumbos. You can count on the Jumbos to perform well, but they are like a packet of mixed color Zinnia seeds. The interesting thing is that, unlike many hybrid C. bulbiepermum types, they seldom make offsets. So, they are reproduced by seed and they make lots of seed when they are in the mood. Cordially, Joe