Dear Wilbert; Does your observation include Typhonium giganteum? My plants get bigger each year (including the tubers) and mulitply. I only grow these outdoors in my cold climate garden. And they are consistently incredibly late in rising. I usually get 'antsy' thinking they have finally died the previous winter. Of course I only grow a few species, but this one has a very short growth period. Thanks and Best Jim W. James W. Waddick Voice: 816 746 1949 8871 NW Brostrom Rd E-MAIL: jim-jim@swbell.net Kansas City MO 64152 Fax: 816 746 1939 Zone 5/6 - Winter low -10=B0F Summer high +100=B0F