. . . another soybean gardener? Welcome to the forum, Bob! Were you using those soybeans for edamame?

"Self seeding" is the term I used in a google seach. I think your best bet may be those peppers just because their relative, the tomato, so often self seeds. But, it must be a little too late to start peppers now in your location. Don't you think? You could collect the seed and sometime before next February or March, test a few of them.

From the get-go, I don't know anything about okra . . .

I really don't think that any bean seed would survive a severe winter out-of-doors. The search did turn up page after google page of an interesting technique that soybean researchers have used on establishing a winter cover crop thru the self sowing of cereal grains. Nothing, however, about soybeans self sowing over the 3 pages I looked at.

Steve

From my experience and I'm south and east of you in very SW KS. Okra would self sow and probably be ok. I always sow my okra in the garden here around Memorial day weekend the same time I transplant my chile and jalapeno peppers. They both like warm soil temps. If planted in cold soil temps neither will grow much and can be stunted and may not ever produce like they should. When I lived in NE NM several of the chile farmers sowed seeds rather than transplant. And usually had a great late crop. The same thing I have seen here from volunteers I've left. And for several years I had a small ornamental type they could also be ate that self seeded every year. It became a nuisance and I finally removed all of them. But unless you just want to experiment a little I would transplant pepper plants. Gives you an earlier crop. On okra I think you should be fine. Soybeans I've never grown so can't comment on them. Again remember I probably have a longer growing season here and warm up faster also. My last frost date is April 16th. Jay

Self sowing? Eureka! The ones I planted last year were from Wannamaker Seeds. Midori Giant and a couple other types.

This year I ordered Beer Friend beans. A very common edamame used in Japan supposedly. I think I'm going to plant them in with the corn.

I do normally transplant the warm weather crops. This is strictly an experiment. I use corn gluten to suppress weed growth so there's only one section that's directly sown. I use a variation of the square foot method. Each vege gets it's own 3x3 plot or more for larger stuff.