hugel with sweet potato & corn?

hey folks!

on a south facing slope, i'd like to put some of the rotting apple branches from the yard into a hugel pile, digging up a bit of the grass and putting it back upside-down onto the wood with a bunch of compost and lawn clippings and such. the plan would be to put sweet potato slips and sweet corn in this bed and the plan is to find the warmest spot on the yard with a soil thermometer and put it there.

wondering if anyone has any advice regarding placement and shape? my thoughts were to do a semi circle with a path in the centre (so almost like 2 hugels facing one-another) and play around with the micro-climates on it. this will be a new bed, separate from my main garden as i plan for a block of flint corn growing with squash up there (it's rather far away - like, a couple of acres away - and there are lots of trees and shrubs so i don't think they will risk cross pollinating much).

any insight is much appreciated!!!

Corn is a nitrogen hungry crop.
The hugel you describe will have a lot of carbon and very little nitrogen.