Hugel for plants that don't like wet feet

Hi there, I'm new to hugelkultur and have a quick question. I am putting in an evergreen hedge on the side of my yard next to my neighbor's driveway. I was thinking about making a hugel to put it on, along with maybe a small swale to catch the runoff from their neighbor's driveway. I have read about the dangers of a swale with a big hugel, and I won't be doing that. The question is, do hugel's benefit plants that don't like wet feet during the hot summer here in Portland? Specifically Grevillea, Ceanothus, Sentinel Manzanita. I will also have Pineapple guava, Choyzia, Viburnum, and Camellia. Would a hugel and/or swale be a bad idea for any of these plants? I know that the logs hold the moisture in, but that the hugel also drains well, so not sure!

Thanks!

I live just north of you and use hugels for just that. They drain excess moisture in my orchard and then release it during the summer drought. I even plant trees into them but leave large gaps in the logs so the roots can anchor better in the soil beneath