A horse should have a blanket in fall or winter to keep it warm.
Never. Horses do not need blankets, even in extreme weather. They grow winter coats. Putting a blanket on prevents this coat from developing. If you want a healthy horse, do not blanket.
maybe in the winter when its cold.
If your horse shivers from the cold in the winter, you need a blanket. some horses get cold easy other don't. If you live where you don't get snow I would just let your horses grow there extra hair the natural way, but if you live where it snows you should put the blanket on.
Season doesn't matter. If it's cold, you need to put a blanket on your horse. It can get cold in the middle of summer sometimes; you have to pay attention to the weather.
u should only put a blanket on during winter. later fall and early spring u can have a light blanket on. horses do grow there own winter coat that is (don't quote me on this but) 10x warmer than a blanket and you should let them grow that for a little before u put a blanket on them. also younger horses do not need a blanket they should grow there coats out.
Horses do not really need a blanket and it is actually unhealthy for them to wear one as you can read in the related link. The only time a horse really needs a blanket is if you clip them in the winter, robbing him of his protection from the cold. To tell if your horse is cold, touch his ears. If they are cold, he is cold. If not, leave him be without a blanket.
no they don't people often give their horse a blacket but they really don't need one as long as they have a dry place to get out of the weather they should be fine on the other hand some horses do require blankets. Not all horses have a sufficient coat to last them through the winter. and a lot depends on the breed. like my TB would definitely need a blanket without one he would freeze, but before when I had a quarter horse it was no problem because his coat was nice and thick unlike my TBs'
Winter I should imagine.
It depends mainly on where you live but during the winter they should have a heavy blanket and during early spring and late fall they should have a sheet or light blanket.
If you blanket a horse at the beginning of Autumn then it has to stay on until warmer weather comes around again as the blanket prevents the horse from growing it's winter coat. Without the the natural hair coat or the blanket the horse could become susceptible to influenza. You can also blanket a horse with a thin blanket in the summer. This keeps the flies away and prevents the horses coat bleaching in the sun.
it depends on the weather,season, and the kind of blanket
No they don't, as it gets colder you have a winter blanket. And your horse should also have a spring blanket as well.
If your horse shivers from the cold in the winter, you need a blanket. some horses get cold easy other don't. If you live where you don't get snow I would just let your horses grow there extra hair the natural way, but if you live where it snows you should put the blanket on.
Season doesn't matter. If it's cold, you need to put a blanket on your horse. It can get cold in the middle of summer sometimes; you have to pay attention to the weather.
winter
There are two answers to your questions:If you are asking "if you need a blanket under a saddle" then, yes. It is to protect a horses back.But, if you are asking "if you need a full body blanket to keep a horse warm" then, no. Unless you are in Norway and you have a very thin coated horse.
winter and fall but mostly winter
Winter
Usually you'd get your horse a new blanket in late fall or early winter. Or what ever the coldest season for your region is.