Haha! Cute!
That would be ACIDIFYING the soil lol! Save the limes for your Tall Cool Ones.
Lime in the gardening sense would be pulverized limestone, or Calcium carbonate. It comes pre-mixed in a lot of soils [ most] and can also be purchased bagged if you need to add more.
I just added a link to my siggy that has a long post about all this stuff... gimme a sec... it hasn't updated yet.