Not all Cryptostephanus are deciduous. My vansonii (treated as I treat my clivia) is evergreen--as is suggested by the wiki. C. haemanthoides--which I have not grown--does go dormant. Carlo A. Balistrieri The Gardens at Turtle Point Tuxedo Park, NY 10987 Zone 6 (845.351.2049) Visit: http://www.botanicalgardening.com/ and its BGBlog