I would imagine the soil is only about 1" before limestone bed
One here well spent, this was very close to a limestone bed with little soil
This area shows 5 plants in the one photo and shows the rank grass which is a drain off from a higher elvated scree area.
Also earlier checked out the Field Gentians and a couple of fungi photos. Also had 2 Wheatear, Linnet party of 50 plus another Linnet party of 20 plus, Meadow Pipits 40 blogging, Skylarks up to 20 blogging, of special interest one high SONG THRUSH heading west, Swallow 1, Goldfinch 1.
My wonderful garden today