I understand a broad leaf is best but no of none that grow think enough to keep weeds like Sandsburs at bay. I want a perenial. Been told buffalo grass is hard to get started here in the Lampasas TX. area. I have pretty sandy soil, and a little clay. I'd like the sheep to have a well balanced diet. Johnson grass grows well but they keep it eaten down so far it never gets to seed itself. Any helpful information would be appreciated these sheep are primarily for eating and grass mowing.