Subject: A. Crispus flower spike Tom, > My A. crispus has put up three flower spikes over the last two m > Although the plant seems healthy, I haven't had any seeds develo Not all Aponogetons are self-fertile. I suspect that yours is one of the ones that is not. Seed production with a self-fertile plant is easy enough that it often happens without any help from the aquarist. Karen Randall Aquatic Gardeners Assoc. Boston, MA