Please bare with me as I have very little gardening knowledge!
I have this area of ground in the garden which up until last year was completely covered in bark chips and weed prevention sheet. I peeled it back to the middle of the area last year and planted a couple of things that didn't grow too well, sunflowers mainly. The cornflowers did ok and the Lupin surivived with a lot of liquid feeding - you can see it growing back on the right side of the pic.
Today I have dug the ground over and extended the patch by the same again.
The problem I have is it seems to be clay soil and there are also quite a few large stones (half palm to palm sized) which I've picked out as I've gone but there are a few more. I have compost to add but I wasn't sure if I should mix it all the way through or just use on top? Do I need to add Gypsum or anything?
Lastly, what do you think would grow well and look good here?
(The fence here faces South so it gets sun most of the day)