Buzzy, I'm guessing that you're question hasn't been addressed because any of us would have to do the same legwork that you need to...check out some of the reputable seed houses and see what's on their lists.

I'd expect that you could find seeds for those plants 'fairly' readily...maybe not at one mail order location, but probably between a couple. It's very common for me to buy seed from a couple of different locations.

Maybe you could narrow your search a bit, and just look through 'fragrant flower seed'. I'll attach the google list for you; some of the plants look absolutely delicious!

Here is a link that might be useful: click here