I'm slowly catching up.
Door 7. Echinops
Door 8. Knapweed
Door 9. Bellis
Door 10. Coreopsis Mardi gras
Door 11. Summer broccoli
Door 12 will be. Onion bedfordshire champion
Door no. 12 has (I think - forgot to write on the bag!) dill seeds. But they might be bronze fennel
Door 13 yesterday had a seed pod from a Trumpet Vine (campsis radicans), again collected form a client's garden
Door 14 home saved zinnias.
Door number 15 has self saved pansy seeds behind it. The colours are going to be a complete surprise.
Door 15 has some of the tiniest seeds I've ever seen - Cyperus papyrus - Nile grass. They were in a little plastic tube and I thought it was empty. Holding it against some white paper I spotted some tiny specks - whether there were 50 seeds as the packet says, I've no idea. Impossible to count or sow individually.
They'll have a lot of growing to do before I can make my own paper.