I recently made my first "piggy patch". I purchased my seeds from a farm shop that sells pasture grass mixes. From the sales person there, I understood that seeds for lawns may be treated and not safe for grazing animals. I bought:
- Orchard grass - dactylis glomerata
- Timothy grass - phleum pratense
- Blue grass - poa pratensis
- I also planted some non-grass plants: chamomile, dandelions and vetch.
Pigs can also have bermuda grass, fescue, oat grass, wheat grass and rye grass, but I thought that these three grass types would be sufficient. This isn't really an exclusive list of what grasses pigs can eat, just what I personally had considered planting.