Silly question about clay
I have just discovered that one end of my garden is composed of 20 - 25 cm topsoil overlying solid clay on one side and sand/gravel on the other - both clearly natural.
I had hope to plant some dahlias down there this year (on the clay), but ultimately was thinking of a couple of nice shrubs (pieris, not sure what else) in the corners. Will that work? The clay is obviously very solid and I don't know if plants can survive growing into it!