Has anyone every tried or heard of grafting okra? There's a hibiscus species called Hibiscus acetosella (cranberry hibiscus) that is supposedly resistant to root knot nematodes. I got the crazy idea to graft okra onto it. All parts of the rootstock are edible, so there's no issue there.
I'm going to try it this year, even if it ends up being too late to get a serious crop. Just wanted to see if there was a precedent.