Are you breeding these mares? If so, you do NOT want fescue in the pasture. Many seed mixes contain fescue because of the its root system and tolerance. However, there are some brands that state they're endophyte free, so you may want to research their safety further.
I also avoid rye grass because in certain conditions it can be toxic.
My pastures are an orchard grass and Timothy mix with some of our native brome grass. The brome is good until it gets too tall. My horses eat around it after it gets taller/more stem, so sometimes it becomes necessary to mow. This would obviously not be mowed if it were a hay field, and if I lived further south, I would probably use a different mix that included Bermuda.
You also won't be able to mix in any legumes such as alfalfa because any broadleaf herbicide you use will kill those plants.
Posted via Mobile Device