I prefer to grow native (non hybrids) plants from all over the world.
Although I already obtained quite a lot of seeds, I'm still searching for new ones.
I would like to grow perennials that are at least hardy to zone 6, or annuals that can be grown in my zone.
You can have a look at my website to see what I have for you in return http://www.seedsite.eu ALL my seeds are available for trading.
Not everything I grew this year is listed there yet, so please let me know what you're looking for. I'll also have a look at your want list to see if I can offer you anything in return.
I have some justicia betonica seeds not native to Oz and my euphorbia has set seed again not native here it has scented flowers, the cestrum nocturnum (night scented jasmine) s also setting seeds. Actually I have a mountain load of seeds of lots of things if you are interested...
The plants you name in your mail are beautifull, but unfortunately not cold hardy here.
But I had a look at your have list and there are seeds on it, which I can (try) grow here:
Abelmoschus moschatus (red)
From your want list I only have Cuphea lanceolata. And I will be for sure be able to harvest seeds from the Salvia roemeriana and the Salvia columbarieae. The Salvia patens Royal blue might be a problem. It's setting hardly seeds and collecting at the right time is very difficult. Every year I have the same problem with this plant. I can hardly save enough seeds to grow them myself the next year. In Australia it's a perennial, but here I have to grow it as an annual.
Maybe it will set seeds better in the 2nd year.
I can also save seeds of the Salvia microphylla and the Salvia sclarea turkestanica if you're interested.
Yes, it's a beauty. It's my favourite Lamium. It can be used as a ground coverer. If you cut them of after flowering, they will flower for a long time.
Don't know how this one will do in your climate. Keep it in shade (here it's in partial shade).
Most Lamiums prefer shade or partial shade.