Zelkova species have male and hermaphrodite flowers, which have both male and female reproductive organs (2). Since the flowers of the Cretan zelkova are scented, pollination is thought to be performed by insects, attracted by the scent. The fruit of trees belonging to the Ulmaceae family vary, and include nuts, samaras and drupes, all containing a single seed (7). The Cretan zelkova is known to be capable of suckering, a form of propagation where new shoots at the base or below ground grow out from the parent plant to produce an individual that is a clone of the parent (1).