My Basil is turning brown in spots; I don't know if it's getting too much sun, not enough sun, too much water, not enough water. I planted it in Miracle-Gro soil. Last year my basil didn't do well, so I bought new soil for the planter. Any ideas?

As it looks like it is only affecting the new tender growth, I would suspect the sun is doing the damage. Perhaps you could provide morning sun/afternoon shade to see if that will provide some relief.

In the south, I find these large leaf basils are more prone to this type of damage.

You can also remove the damaged foliage if you wish. The pruning won't hurt it at all.

And I'll watch this thread. If I'm wrong, I'll learn from it. Good luck!

Thanks, I'll give it a try and keep you posted

PS, Miracle Gro soil has a reputation of treating plants that way- mine simply burned off and died. Look around for a different potting soil for that tender a basil, or go with a soilless mixture, morning sun and evening shade...