aspect...what direction does the slope face?
I see a lot of trees...trying to get an idea of how much sun the area gets. I imagine it gets enough for the roses at the base.
Apparently, I did something stupid and cut off the rest of my previous post--so I fixed that above, hopefully.
Truly, you have an envious natural resource here for an amazing rock garden!
(I'd go hog-wild and remove the fence and a couple junipers and plant the 'wall' too--but I'm quite fond of rock and not very sensible)
It's probably good that you don't see run off--means it seeps down through and more for your roses
I still don't think you would have much of a drainage problem on that slope. I'd suggest you try a few different plants and see what happens.
I can't quite tell how tall your fence is ? but I have a wall that I just put a ladder up against to get up on it and I also plant and weed from the ladder. Just a thought...
here's a source for seeds and instructions
http://www.alplains.com/
I've purchased plants locally and from the sites below. Some of these also have really good info to peruse.
http://www.wrightmanalpines.co...
http://www.laporteavenuenurser...
http://www.wildgingerfarm.com/
http://www.arrowheadalpines.co...
