In most cases horses reach sexual maturity at 2 years old give or take 2 or 3 months
What Age Does A Horse Reach Sexual Maturity?
Fillies - A female horse UNDER the age of four Colt - A male horse under the age of four
Mare - A female horse over the age of four Stallion- an uncastrated male horse over the age of four
Gelding - A castrated male horse
To cut a long story short a horses sexual maturity is at the age of Four
Mare - A female horse over the age of four Stallion- an uncastrated male horse over the age of four
Gelding - A castrated male horse
To cut a long story short a horses sexual maturity is at the age of Four