The best, most well known grass to eat is wheat grass. It only takes ten days to grow the grass, then you cut it. then it grows again and keeps doing it for a while. After you used it for a while let it grow into wheat and BOOM flour and wheat berries for more wheat grass.

Wheatgrass can be blended and made into a delicious drink if you add some fruit, its real healthy too, you can look up a video on youtube about it. It's real healthy, not like other grass.