I believe that this depends on the form or clone, at least for stenanthera. I have a clone of F stenanthera which certainly does offset, though I have several others which do not! I agree in general however, that many frits are slow to increase vegetatively. These which Jane mentions are a distinct section of Fritillaria, there are other fritillarias which are also very slow to offset, or else don't. Peter (UK) On Sun, Aug 4, 2013 at 2:27 AM, Jane McGary <janemcgary@earthlink.net>wrote: > some almost never offset. > That's why you don't see their bulbs in commerce, at least not for > low prices. For instance, I have never known Fritillaria arriana to > offset, or the closely related F. gibbosa either, and another of > their relatives, F. stenanthera, does so only perhaps every ten > years. >