Hardy plants for in between stacked rocks

D C

A few years ago, this forum helped me get my rockery started by recommending some plants for that. I was wondering if anybody has any ideas for my latest project please.

I have built a waterfall next to my pond, which is essentially comprised of stacked rocks. I have now started cramming soil in between the rocks, and am keen to get some plants in there. As you can see, I have started transplanting some bits from my rockery, but I thought now would be an excellent time to diversify a little.

Does anyone know of any plants that would do well in between rocks, in Scottish weather, that can be found online in the UK? Because the structure goes all the way around, there are bits that catch sun (what there is of it), and bits that are pretty much shaded all the time. I quite like evergreen plants, but happy to make exceptions.

Alternatively, could someone recommend a good online nursery (or one near Edinburgh) that has a good selection for this kind of project?

Thanks in advance for your help.

FlyDragon

Campanula (bellflower) pops up out of cracks in the pavement around here, so I expect it could survive your rocks pretty easily.  Its very pretty too, but sadly not evergreen.  

Cambridgerose12

Try Pottertons for miniature bulbs and Edrom for small growing unusual plants.

D C

Thank you both. I was pointed towards Edrom for my rockery as well, and was not disappointed. I am quite happy to find they sell campanula as well, so that is definitely on the list.

Fire

Erigeron would be happy there. Creeping saxifrage and other alpines. Creeping aubrieta for spring flowering. Creeping phlox. Short creeping sedum.