Akula

If the grass is piled too thick it can cause matting which is not good. I apply everything that is mowed. When I first started out I piled it on thicker and in my environment it didn't cause any issues. Maybe 3"-4". I apply across the whole area that I consider the banana patch. Not just immediately around the plants.

Over the years my patch has expanded but the grass area has not so now each banana plant gets about 2 inches every ten-fifteen days depending on the rate and quality of grass growth. I've reached maximum sustainability of my grass clippings for my banana patch application. Haha.

Note: If your area gets plenty of rain and has a great deal of humidity organic matter breaks down quite quickly. Organic matter breaks down much slower in a dry area with little rain such as Arizona. So base the thickness on your areas ability to break down organic matter.