Are sunflowers harmful to horses?
Despite rumors that cheery, bright sunflowers are poisonous, there’s no truth to the claim. Sunflowers are not only perfectly safe for humans1, but also non-toxic to dogs, cats, and horses2, according to the ASPCA. Can horses eat whole sunflowers? Yes, whole sunflower seeds are safe for horses and ponies when doled out in moderation, but the type of seeds...