Hugelbeds with conifers? Beds on contour in cold climates.

New to the forums, hello all!

What are thoughts on using conifers in hugelbeds? Also wondering about the beds in a cold climate. In one of the podcasts Paul mentions that in cold climates, the beds should run perpendicular to the slope to allow cold air drainage, but this would seem to negate much of the swale-like characteristics of hugel on contour.

Thanks folks

Graham