TIP: The best grasses for horses are those high in fibre and low in sugar, such as Timothy, Brown Top and Cocks foot.
Kikuyu and Yorkshire fog are low sugar types and ok in some moderation too.
With Kikuyu -ensure additional calcium is added to make up for the reducing effect on calcium this grass has.
Grasses that worst for horses, particularly when fast growing are Rye and Clover. These are not safe for susceptible horses and ponies most of the year and require strict pasture management to avoid problems such as obesity, fizzy behaviour, colic or laminitis in your horse or pony.