I can't wait to see it, and thanks for the gracious welcome!
I have grown Nigella in the past and it is a gem! I also grow Cleome, too. The Cabbage Whites lay eggs on it. We have the common pink 4 o'clocks in abundance and the sphinx moths love them. I grew some purple moon vines this last year they loved, too! I saved seeds to plant again this year.
I order a lot of seeds from Remy at The Sample Seed Shop. She sells small packets for around $1.25 to $2.00 and always has a nice variety.
Susan