Hi, On 27/03/17 22:11, Jan Jeddeloh wrote: > Have you held the seed up to the light to see if you can see an embryo? Have a look at: http://pacificbulbsociety.org/pbswiki/index.php/… Something like "Seeds that have an underdeveloped embryo at the time of dispersal and require specific temperature conditions for embryo development and radicle and cotyledon emergence have morphophysiological dormancy (MPD)" Short version of the URL: https://goo.gl/0rbSdJ/ Put it another way just because you can't see the embryo does not mean the seed is a dud, the embryo may develop later. -- David Pilling http://www.davidpilling.com/