Hi Ina, The Z. candida that I grew is a small form I dug out of a swampy ditch in southern Louisiana. It must have gotten out of cultivation? They were evergreen and multiplied nicely in a border in Louisiana. The plants do occasionally form seeds and are pretty hardy to mild frost as Alberto suggested. The leaves can freeze to a pretty good solid in winter days (sometimes to 20F/-6C) and thaw out perfectly. What's more impressive is that they are able to withstand the 100F/98C days in the muddy soils where a lot of plants will have their roots boiled. Tough plants, pretty, and should definitely be grown more often in hot places. Nhu On Wed, Feb 26, 2014 at 12:30 PM, Ina Crossley <klazina1@gmail.com> wrote: > Does yours set seed Nhu? >