On Dec 28, 11:21*am, kay wrote:
Have you looked at the Alternative Energy Centre near Macchynlleth?
They're not as high as you, but they did create a veg garden out of,
basically, slate. *I saw it in the early days (1970s) when I remember
some unhappy looking soya beans in a bed of slate chippings, and again
15 years later when the veg were flourishing. They might have some
advice for you.


The advice might involve peeing in a bucket, mind.