I guess I should find some time, re-listen to the "good weeds" part of that podcast, and take notes.
It occurred to me yesterday that "soil type" might make a big difference to how the same weed would grow roots in different areas, and how easy they are to eliminate by pulling.
For example, I can pull 8-10" of dandelion root by hand, if a feral dandelion gets that big in my best-amended raised bed. But the "wild" ones that grow in my rock-and-hard-clay basic "soil" leave all of the root behind unless I excavate around them with the sharp end of a pick and a spike bayonet. (The rocks are too hard on the edge of my mattock to use that.)
