The Farmer's Bundle includes: 

2500 BX
Farmer Hat
Farmer Outfit
Asparagus Spear
Sunflower Shield
Sword on the Cob
Pea Shooter

When you purchase the DLC from the Steam Store, you must login to the game in order for the purchase to be added to your account.  If you do not immediately see the DLC on your account, log out and back in.