I'm not a concrete guy, but I'm pretty sure you grate the area and then lay down gravel first.

This is fine. That concrete has the electrolytes that plants crave.

brought to you by Carl's Jr.

Well, you get what you pay for I guess. That shit is going to be fucking useless in a few weeks. Maybe months if you are lucky.

To many mistakes to even know where to start. I will address not mowing the lawn before the pour since the grass will be showing above that thin base for sure. lol I'm sure it was a clue when the boss tried to sell them a 1/4 lb during the negotiations.

Don't worry guys, they ordered high strength fiber reinforced concrete. You can pour that shit on anything. What I'm wondering is why they even bothered with form boards at that point. Get ur slump down to about an inch, won't need em. Retards...