Mother Plants is an upstate NY garden company that specializes in green roof plants. As a green roof installer in Brooklyn we find it quite convenient to buy from them. Whatever you order basically gets to Brooklyn in a day or two.
They have just put out their 2010 catalog and is full of lovely pictures and plant descriptions. When a client wants to pick the plants this kind of brochure is quite helpful.
Mother Plants is not the only green roof plant supplier we work with but they are one of the best.