If that's the same mustard we have up here, I pull those things every chance I get. Got to put them in a bag or burn them though, once flowered even when pulled if not contained and thrown away or burned they can still seed. Garlic mustard is the same way and I hear one of those two inhibit micelia(sp.)(mushroom) growth. Gotta keep them away from your mushroom patch. Tastey all the same, your right. dp
