Sort:  

this is my first year growing zinnias, i will let some of them reseed (and save the other seed) to see if they'll come back! yes cockscomb reseeds quite easily here. curious why yours aren't making it- what doesn't seem to be flourishing about them?

Planted late, most likely, and torrential rains since then. It seems I tried them many years ago and didn't have much luck then either.