Hi!
Yesterday my Brazilian friend told me that my banana seed (11 species, hybrids and provenances) from Rarepalmseeds and Sunshine Seeds are germinated after 5 nights with nearly freeze (near 0°C or near 32°F, so 1°C, 2°C or 33°F, 34°F or 35°F), all of the seeds germinated!!!!

It's amazing!
I have shipped seeds to Helton to Brazil:
Musa sikkimensis Rarepalmseeds
Musa sikkimensis Sunshine Seeds
Musa sikkimensis Red Tiger
Musa sikkimensis Red Flash
Musa sikkimensis Manipur
Musa x sikkimensis "Daj Giant"
Musa sikkimensis x paradiescana
Musa sp. Helen's Hybrid
Musa cheesmani
Musa yunnanensis
Musa siamensis "Thai Gold"
Now I can begin my project with crossing bananas. Now I have the importantest bananas for my program in Brazil.
I surmise that hardy and cold tolerant bananas require stratification to germinate. Who has the similar or the same experiences like me?
Best wishes
Basjoofriend