[citation needed] Males grow to about 1.5 inches (3.8 cm) and females are slightly larger.
They prefer a humid environment and live about nine months in captivity.
Though infrequent, cannibalism among C. germmatus is nevertheless more common than among other flower mantises.
[citation needed] They moult 8 times to become an adult and can take between 2 and 5 months to mature depending on food and temperature.
[1][citation needed] Each ootheca can contain up to 50 eggs, and under optimal conditions, the hatchlings will emerge after about 5 weeks.