They don't always grow where you want them to grow, even though you try to grab those seeds as soon as they are ripe and put them where you want them.
I have them growing between the pavers in the vegetable garden and in the herb beds. Even more than ever this year. The flowers don't last long and this year they were pounded into the ground by the 10" of rain that fell, in one day, in my garden.
Nevertheless, here come the seed heads. They must be self pollinated. Now if I can just remember to keep my eye on the seeds.
Another plant that responds immediately, but this time to late summer rain, is the oxblood lily. Nothing showing above ground last Thursday but by Sunday, after 3" of rain, I photographed them in full flower. The flowering was short lived due to Tuesday's torrential downpours. I'll have to wait another year to see these ones again.
I don't think these two make good companions. Even though I moved all my cactus, succulents and agaves out of the rain, the second time, there was enough moisture to get things moving in the toadstool world.