Seeds should be tossed around when the previous years crop would have dropped it seed.
Not all plants reseed themselves the same way
Matt Baker wrote:Makes perfect sense to me. Why not seed all plants in the fall when the seeds naturally fall to the ground.
Eric Thompson wrote:Although it's true that broadcasting follows nature's way, keep in mind that nature's expectation is often to throw out a few thousand seeds to get just a few living examples the next year. Usually we want to do much better than that and "assist" nature's way by replicating conditions that produce success with much higher percentages. In my experience, that always involves getting at least a little soil on top of seeds that I want in good numbers - usually through raking, but sometimes through "alternative" methods like lawnmowing or chicken scratching.