I agree with you as to hostas that prefer "dry" or "moist" spots. Way
up here, I tried growing Summer Music in the richest part of my gardens.
It kept shrinking, and showing signs of rot. I finally moved the original
to a much drier area and it loves it. I bought a couple more since, and
have them in dry spots and they are doing great! My montanas seem to
accept drier locations also.
I also have tons of root competition. I am learning to grow plants on
in pots for a couple or more years before planting out directly...no way will a
small baby ever go into the ground right off.
Lots of trial and error, & success, which is so