lol,

rough green snakes come from the US. most animals availiable in captivity are WC unfortunately. Because of this they are quite cheap. they get to a maximum of 3 foot, but are usually smaller. They can be kept in groups or singly, but groups are better, (a group of 3 looks good).  They are arboreal, and so require quite a tall viv. One of the larger exo terras may work. (60cm long x 45 cm wide x 60 cm high) or a 90 x 45 x 45 cm viv. keep them on a substrate of orchid bark or something similar. they will need a humidity of 40 to 60%. Feed them crickets, small locusts, moths, butterflies etc. every 2 days.

For heating they will require temperatures of about 85 to 90F at the hot end and 78 to 80 at the cool end. Ceramic heaters, heter pads, reptile radiators and spot bulbs all work well as a heat source.

http://www.popularpets.net/snakes/care-sheets/pictures/rough-green-snake.jpg theres a pic for you.

hope this helps ;)