I have to admit, most of the time when I referr
to "Mother Nature doing it", it's just dropping the seeds right there, on top of the soil..
like when a plant makes seeds, and dries up come fall time, and then it falls over and where the seeds lay, is where the baby sprouts..
I can't say that "Mother Nature" has a cold period in say like the South.. if you know what I mean...
But my most favoritest plants are the one's that Mother Nature does the best..
I've never tried to grow catnip from seed (probably wouldn't be able to keep the cats out of it, from the minute it sprouted)
And from my

readings *and having plants,
both re~seed and try for YEARS to move catnip*,
that when Mother Nature puts the seed down, the cats won't abuse it much... but when you try to transplant an already established plant from somewhere's else, to a new spot, a cat, 10 miles away will make a point to come roll on that plant and pull it out and make it disappear...
The seeded one, will stay there, an occasional roll, or nap on a plant, but usually left intact.
*Well, that's with the 5 cats we used to have*

:rolleyes: