St. Augustine Grass DNA

I would like to conduct a home experiment in which we use CRISPR to limit the height of St. Augustine grass.

Questions:

Given the extensive research on this type of grass developed by the university of Nebraska, what strand of DNA/RNA should be targeted?

Can it be spread via liquid solution to contain the changes to a single property?

What are possible side effects of limiting the height of grass below it’s natural state?

Thanks!