Bermuda grass is a dream of mine But here where I live it is really hard to get turf growing well....so this is my first choice in my land of day dreaming....lol
two years ago i bought this mix (see link below). i live in arizona so i babied the grass for the first year, collected the seeds that season and planted again in late winter. now i am swimming in grass and my torts are "fat" and happy with the results! http://www.turtlestuff.com/category/Custom-Blended-Forage-Seed-Pasture-Mixes-39
also, i believe that there is someone on thie tortoise forum who sells seed and calcium powder and other tort necessities. i can't find the link right now. anyhow i bought another set of seeds from this person and the two mixes have set my torts up for life!