Rebecca Norman wrote:It partly depends on what local birds you have, and which seeds they love best. Here, we've never been able to grow peas, because even if we cover the seeds in the soil, the local partridges come and eat every single one.
Su Ba wrote:I would think that moisture will be the limiting factor with surface strewn seeds. Plus the nature and the condition of the "soil" would have a big bearing too. Thus broadcasting seed atop bare undisturbed soil exposed to sun and wind sounds like a failure about to happen.
The only seed I have deliberately surface broadcast onto unprepared soil has been grass seed. I quickly discovered that "strewn & walk away" wasted most of the seed and my effort. My neighbor pointed out that if I scratched the surface with a garden rake before sowing then lightly watered the surface each evening that I might actually grow a lawn. I gave it a try and ended up with lush grass seedlings.
Thinking about this permaculture wise, Mother Nature favors seeds that fall into crevasses or get lightly covered in soil via a heavy rain. And seeds tend to germinate far better with a few rains or heavy dews. So if I wanted to emulate nature, I would want to do more than mindlessly throw seeds and walk away.