Sometimes, I like to just seed the containers.
I cover the seeded pots with a large plastic bag.
One, I am planning for this year will be Utrecht Blue wheat as the tall;
white agrostemma and white Shirley poppy as the intermediates; and blue california bluebells as the trailer. If any of the direct seeders do not sprout well, I will fill in with
white, blue or orange petunias.
These would also be for full sun positions.