Sounds more like a water problem than a sun problem. The coral bells will grow well with quite a bit of sun. I don't have any of the others listed.

the columbines can tolerate some sun too - i have some that grow prosper and do quite well in full sun. it might be a water problem - too much water - not enough water - poor drainage? dig down into the soil and see what you have for moisture say 3"-6" deep.

Hi,
I stuck my finger down in the soil about 3 inches or so.It
feels rather moist,but not too wet.I did amend the bed with a lot of compost last fall before I planted it this spring.
I don't think it's a drainage problem;the bed slopes down slightly.Any more ideas?Thank You!
Denah

It doesn't feel like a sun problem to me either. I have all of those West facing under a Red Oak. They do well.

I'm less confident of the COmumbines, but all the rest will do ok in deep shade. Foam flower will flower a bit less, Coral Bells will turn a bit greener.

If you amended your soil, is it possible that you overdid your fertilizer? That would cause the leaves to brown. Just a thought. Shel

Hi Shel,
Overdid the fertilizer?I never even considered that.We have
pink clay on top of gray clay here at our house.I just thought it needed all the help it could get!
Denah