Front Lawn Has Granite 2 Feet Down, What Can I Grow For A Lawn?

Question

Granite is decomposing, grass only lasts a season then dies.

Answer 1

Your grass should only require about six inches of soil. Are you certain that the type of grass you're planting is a perennial? Have you planted turf grass? I don't think we can determine the problem without knowing what variety of grass you're planting. The decomposing granite may not be what's killing your grass. I would suggest taking a soil sample to your local nursery or even contacting a university extension agency to get to the root of the problem.
Here's a link for your closest extension office:
https://www.gardeningknowhow.com/extension-search?zip=93561&radius=50&services_search_action=search&submit=Search

and here's a page of articles on testing soil and correcting soil problems:
https://www.gardeningknowhow.com/search?q=soil%20test

Here are lawn grasses:
https://www.gardeningknowhow.com/special/xeriscape/drought-tolerant-lawn-grass.htm