Hi lucky, that is a nice list! But I don't do seed level.
But from your list, I have tried to grow some coleus and some caladiums in containers. They do thrive here during our hot summer months, just got to water them frequently, especially caladiums, really thirsty here once fully awake, I have to water everyday. Love them really, since by summer most of my plants are just hanging on when it starts going into the high 90's to triple digit dry heat. I like to pinch back coleus so it will grow bushier.
I find caladiums really slow starters, like they will wait till June to show up or some even waits till July already, maybe because my garden is just too shaded by shade from the city trees, though they will need the good shade with our onerous dry heat.
Coleus is faster though to feel the temperature cold of Fall, so it is faster to die down. Caladiums stays around a bit longer, and I brought the containers inside this winter. Will see how fast it will try to come back when I bring them out again when temps go stable and warm.
