Don't buy dirt from Lowes unless you want to pick rocks out of the ground up wood that has some dirt added.
The stuff from Home Depot didn't have any rocks.
For reference I bought 30 or so bags from Lowes in the past 4 months before noticing the rocks and I only noticed them after it rained. I bought 8 bags from Home Depot a week ago and yesterday's rain didn't expose any rocks.
