Hi Nils, I don't want come over as contrary, but one generation of my family grew I. pseudacorus on land, and another I. sibirica in a pond. So there's a little tolerance. On 11/05/2021 08:00, Nils Hasenbein via pbs wrote: > Concerning Iris larger 1,5 m, David brought up I. pseudacorus, which > definitely grows at least 1,5m height and is a common sight at water's -- David Pilling http://www.davidpilling.com/ _______________________________________________ pbs mailing list pbs@lists.pacificbulbsociety.net http://lists.pacificbulbsociety.net/cgi-bin/… Unsubscribe: <mailto:pbs-unsubscribe@lists.pacificbulbsociety.net>