Last week I got some seeds in a group swap I can't grow in my zone 6. 
Maybe there are members who are interested in these seeds.  Ofcourse I can't garantuee if the seeds are right labeled or fresh.
Albuca bracteata
Xeranthemum cylindraceum
Lavandula viridis
Since I'm a starter in growing rock garden plants, I would like to get some seeds I can grow in my zone 6 in return. But since it are not my own collected seeds, I can understand you have your doubts. In that case I will send the seeds and wait until next year. If you're satisfied with the seeds, you can send me some seeds next year.
Here is my wishlist 
http://seedsite.eu/wishes.htmJonna