Under Propagation: Seeds, you've got to add -does not come true from seed- or whatever the correct terminology is.
Edit:
Dave, One of the things I'm always looking for is plants that bloom during a certain time frame to add some color here when it's slack. I don't know how this works, whether by zone where it's grown or what. You get the idea. So can bloom time be linked to zone and that be available in advanced search?