Those look so painful. Why don't you think about Crosnes? Also known as Japanese artichoke or "Stachys affinis". It is an understory root plant, it is in the mint family so spreads REALLY easy. LOL. It is good in stir fry and salads. And as an added plus, it won't scar/sting you.
Can you smell this for me? I think this tiny ad smells like blueberry pie!
Kickstarter is LIVE for the Low Tech Laboratry Movie 2