Question
I have new grass and didn't spay or do anything to the ground before hand. I tilled the soil up and then planted grass. I didn't do a lot of research on it and just did it on my own. I have new grass which is 5 to 6 weeks in growth. I used Scott's  weed and feed turf builder plus 2. Will it kill my new grass by burning it up?

Answer
The key to a great Lawn is not great Scott's products.  The key to a great Lawn is great Lawn care.  That means enriching your SOIL.  Not putting fertilizer on it.  Plus, the 'Weed' in Weed N Feed distributes weedkiller all over your property, whether you need it or not.  That's not good for your Grass, for your Soil, or for you.  Not to mention your local Birds and Bees.  So all the damage does not end at whether you damaged your baby Grass.

As far as what you can expect from the Scotts powder, it may be lethal or it may not, depending on how much you used and what kind of Grass you planted.  (I do wish you had mentioned that.)

The best way to grow Grass is to give it terrific Soil to grow in.  Look, if you wanted to grow, say, Geraniums in a pot, would you just take a shovel and fill up the pot with anything you had in the driveway?  Would you expect the  Geraniums to do well in anything you grew them in, and then make up for the bad Soil by pouring Weedkiller and Fertilizer all over them?  Of course not.

Grass is no different.  Except that people learn about Lawn care by reading advertisements prepared by Lawn Care Products Manufacturers.  That's ridiculous.  But almost the entire country lives this way.

So don't think you're along.  Probably 90 percent of the population would have done the same thing, except that they would THINK they knew what they were doing, whereas you DON'T think you do.

Keep your Grass watered well -- and if you are in the Northeast where we are baking every day in Summer-heatwave temps, cross your fingers.  Because this is the WORST time of year to be planting Grass EVEN ON A GOOD DAY.  If at first you do not succeed, try again in the FALL, when Grass should ideally be planted.  Keep me posted.  Your followups welcome.