How exactly can you be a "nomadic farmer?"
The two "geniuses" who wrote this garbage show wrote the "harfoots" as "nomadic farmers," who travel with the seasons and plant wherever they go.
Just another sign that the two dipshits writing this show are city boys who have never had to do real work out on the land.
Unless you are taking care of herds of animals and move with the seasons, you cannot grow crops and be nomadic. It doesn't work that way. You have to stay in one spot and take care of your fields for months before a harvest can be done. You can't just pack up and leave whenever the mood suits you.