If you are considering a new ley on dry or drought prone soil, then cocksfoot is the grass you should turn to.

Considered by some to be unpalatable and coarse, others know it to be the only agricultural grass that reliably produces when sown on dry land which, when properly managed, makes an excellent forage grass.

To get the most from cocksfoot it needs to be sown at the right proportion in a seed mix and cut or grazed frequently to keep it leafy as described in this indepth cocksfoot article.