Adding more soil will prompt the stem to grow roots? Also I hear growing in 5 gallon buckets is fine. I've had success in the past growing in 5 gallon buckets. But FULL buckets, im not use to soil sinking a few inches on me lol. If the stem will root when I add soil to it, I'm not worried about burying them. Just the loss of a few inches of soil around the entire bucket made me iffy if I will be okay until harvest.