I just removed an old shed from my property. It had a base made of layers as following:
-first layer: gravel
-second layer: crushed stone
-third layer: precast concrete slabs
It din not have the landscape fabric and the soil mixed with some crushing stone. The original soil in my yard is closer to clay. After I carefully removed the what I could as crushed stone I started separating the gravel from the mix of soil and crushed stone. The result was two heaps one of crushed stone which I plan to reuse for building a path and another of this mix between crushed stone and the finer particles (almost sandy) of the crushed stone.
I was wondering if there is any way to use this as a base for some rocky garden or something of this sort. I live in Toronto and I often go to visit Edwards' garden where I can see hen and chickens or something similar planted in a sort of wall made from sand and ...bottle bottoms like below
I love this arrangements a lot and I wold like to be able to build something like this in my garden
-can I reuse the soil mentioned above to plant something like this?
-are these (chicken and hens) perennials going to survive the harsh weather of Toronto (Canada)? I have seen then in Edwards Garden for years but I have not followed their evolution closely to see if they are actually struggling or thriving...
Edit: here you can see what the soil that I want to reuse looks like (last picture of the three showing soils and limestone crush or screed)