Ra, I have great results from food-grade spices, and coriander/cilantro is one of those herbs that make my life happier, so wooohoo!!
I went to a permaculture/agroecology meetup last weekend, the kind of thing that feeds my soul. I got to not only support a bunch of rural homesteaders (buying their cachaça, sausage, cheese, sugar, etc) but also talk to the seed savers. I missed the seed swap, but I did manage to get some great prospects for next summer, along with some ideas of things i should be foraging.
I talked to a guy who had job's tears seeds for sale and learned that it's highly recommended as forage for livestock (I just know it as an invasive pest.... but when I have these giant rabbits who can eat around the clock, that sounds like just what I need!). The little voice in my head said, hey, we've seen that around lately, and so yesterday I kept my eyes open when I took the dog out for his walkies. Got myself a pocketful of seeds and will try planting it in the marginal spaces of my garden (some borders in shady spaces near the walls where I don't plant).
Of course, only in August/September, as now we are officially in winter and those seeds probably won't do much right now.