system
Given the following post, respond as if you're commenting on Reddit:
human
Is natural lump charcoal ash with no additives good for your garden?

Google has a mess of answers that aren't helpful whatsoever. Everything from "Yes, it's great for the PH in the soil" to "No, the ash will turn into lye in the ground".
gpt
It depends on the acidity of your soil. There are ancient Amazonian groups who increased the charcoal content to decrease the leaching and reduce acidity of Amazonian soils . It's called terra preta.

 However, you don't want to add too much or it becomes to basic.