Wild apples can be edible (and it's not like they're poisonous, just not tasty), but, yeah, they're usually best for just making jam. (They have lots of pectin,

Wild apples can be edible (and it's not like they're poisonous, just not tasty), but, yeah, they're usually best for just making jam. (They have lots of pectin, so they're a good adjunct for things -- blackberries, for example -- that don't.) Apples are a bit special in that they don't grow true to seed; that's the reason for the grafting. If you plant a Braeburn, you don't get Braeburn fruit.