[H]omer wrote:
I have a small area covered in loose 2" pink granite rocks, and I'd
like to know if there's any type of plant (wild or otherwise) which
could grow on it (other than lichen or moss). There is some
compacted/stony soil underneath that is quite acid, and the rocks
are
about 2 - 3 deep.

Please don't ask why
I *do* have a reason.

Most of the stuff I've found via Google requires limestone or
direct
soil contact, which I don't think would work here (unless the
plants
seeded underneath the rocks then grew through the cracks).

I'd prefer full cover (kind of like heather) with delicate
flowers -
i.e. hide the rocks. No I'm not going to move them

Sounds as though your instinct is right: heathers would be great in
that position, and are very low-maintenance once established. They
don't want shade, though. I'd suggest planting in groups of half a
dozen or even more of each variety, as singletons look a bit
pointless to my mind.

Or you could have a very nice display of small rhododendrons/azaleas,
some of which will appreciate a little shade.

You will want direct soil contact, though: is it all right to move
_some_ of the stones aside? If it is, it'll be best to make a nice
home for each plant by loosening the soil underneath and adding
enough extra to bring up to level: this planting pocket need only be
six inches across, and you can put just a few of your stones back to
disguise and retain the bare soil round the plant till it's grown a
bit.

If not even a few of the stones can be moved, even temporarily, I
don't see how you can plant anything; so you'd have to use the space
for a display of pot plants

I think you will probably get some moss coming in, but it shouldn't
matter.

Alpinists will probably have some more suggestions.

--
Mike.