I've got to raise the soil level in our front beds about 6", as part of a
drystack stone project. We have existing plants (Rhododendrons, Azaleas,
Chinese Privet, Russian Oive, Rosemary) that we'd love to keep. I assume 6"
is too much to just heap extra soil over them and assume they'll take the
hint. Alternatively, we'd have to cut the root structure out of the soil and
elevate them.

Does this make sense? or should I consider just putting the extra 6" of soil
down? Are some more tolerant of extra soil and/or transplanting?

Thanks,

Mr. Sensitive