The maless call has been described as a plunk or gunk sounding like a banjo. It is a single note given once per second four or five times in a row. The first plunk is the loudest, then they trail off. Males defend territories from other males. Females lay 3,000 to 4,000 eggs in a large mat.
Tadpoles are green with small black dots and sometimes have yellow bellies.
They transform their second year. Green frogs spend their time at the waters edge waiting for prey. Green frogs move overland when there is a heavy rain.