Thank you so much for all that info, Ursula!
I only know of T. majus that we grow here--didn't know there were others until I saw your photo!
T. majus supposedly doesn't like hot humid weather usually, but I've been able to grow certain varieties in my hot humid garden throughout summer. I usually do sow them in late winter, to prevent them from rotting before they sprout since winters are snowy/rainy here.
Perhaps the old wild seeds will all sprout together during a rainier year!
Thanks again.