Dave, you and Trish listed many "good" weeds in that podcast, each with different drawbacks.
Can I wheedle you to type up a list of them, with virtues like "edible", "smothers other weeds" and "easy to uproot before it goes to seed"?
Or do you know of a link somewhere with that sort of list?
The idea of fighting weeds with weeds really appeals to me! Especially if I can compost "good weeds" since I've learned for sure that I can't afford to compost "bad weeds" with seeds.
