I'm not sure if this is the right place to post this or not...
What is the difference between potting soil and top soil besides the obvious? I just bought a house in September, and am starting to buy supplies that I'll need for my gardens this spring. I am thinking about making raised beds as the soild is very poor here. I can buy a larger bag of potting soil cheaper than I can buy a bag of top soil but didn't know if there was a reason why the potting soil would be a bad choice.
And, if I decided against the raised beds, would it help the soil to mix in a few bags of potting soil or top soil as I am tilling?
Thanks for any advice.