How has Granny Smith kept Sweet Apple Acres going for so long? Has it been just hard work and care for the land or is there something more to it?

Story summary: Sweet Apple Acres is a profitable farm run by Granny Smith. Two burglars decide to take some of that profit for themselves. 

“The Old Green Mare” by MisterNick

Origianl story: https://www.fimfiction.net/story/266705/1/the-old-green-mare/the-old-green-mare

Music: https://www.youtube.com/user/myuuji