Stone wall needs makeover.

I wonder if anyone could help me with some ideas with the location shown in the photo.
Are there any plants I could plant under the Leylandii hedge that will grow/trail down over the Cornish stone wall. Also some ideas for plants that could be grown in the wall joints.

The wall with the cat on it is SW facing and gets a lot of sun but the wall coming off at the end is shady until late afternoon.


Thanks.

 

Aubretia would give a wonderful mat of colour on top of and in the wall in mid spring and early summer. It would also grow on the shady end but would flower a little later. You could try some ferns in the cracks in the shaded end.

 

Campanula or Cerastium (Snow in Summer).

 

Sorry for taking so long to reply. Thanks for the advice guys, I'll mug up on those recommendations.

 

A great plant for a sunny wall is delosperma cooperi.