Does the content of the ash vary from place to place?
@Soil, I'm not sure I'd say that the problem is it being too fertile, I think it's more an issue of too many toxins being highly available.
I am exprapolating from this thread what to do about the lava rock I'm dealing with. I believe it is good stuff, just needs time.
This thread seems related to a question I have had about lava rock. In my area in the Northwest homeowners sometimes buy red lava rock for mulch instead of bark or compost. I understand that volcanic soils are fertile so I wonder if the lava rock, which is already in place, will provide favorable conditions for the garden beds I'm building on top.
What minerals does the ash provide? Does the content of the ash vary from place to place? Do lava and ash have similar content?
RZA are you aware of previous ash deposits in the area you garden? Has it been fertile for you?