Hi, Peace lily is a common indoor plant which flowers when bought and then never again. It is said that treatment with GA3 makes them flower. GA3 (https://en.wikipedia.org/wiki/Gibberellic_acid/) is commonly available, used to make some seeds germinate. Also applied in the production of grapes. Maybe you could wash your grapes over the Zantedeschia. -- David Pilling http://www.davidpilling.com/ _______________________________________________ pbs mailing list pbs@lists.pacificbulbsociety.net http://lists.pacificbulbsociety.net/cgi-bin/…