The best Forget-Me-Not water/soil: Alkaline, Acidic, or Neutral?

I have these Forget-Me-Not seeds. I want to plant them. I have this really good Miracle Grow soil to use. And I also have this water system that changes the pH level of the water. I want my Forget-Me-Nots to grow great, but I'm not sure what pH level is best. Alkaline, Acidic, or just plain Neutral?

Oh yeah, and I'm growing them in Southwest America. It's pretty hot here, and it's also summer. Do you think they'll grow pretty well?

Thanks!

Answers:
Here's a great site with information about growing Forget me-nots.
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