I have a largely rectangular garden except for a corner where the end wall veers off at an angle and meets the side boundary a bit further away than it would if it hadn't veered off, IYSWIM.
The direction the garden faces and the height of the wall/fence means that this triangular corner is always shaded, no direct sun goes down to ground level at all.
There used to be a shed obscuring this, but I've moved that, and want to plant it up. My lovely local nursery fella suggested a Coleanthus, and says that it will definitely survive there, but not be particularly fulsome in the flower department.
I was wondering about hanging a mirror on the wall, to bounce sun that I do get into this corner. Is that ridiculous? 