I found this casa banana fruit from rare seeds in late summer last year.
In August, I soaked four seeds in the warm water for 24 hours, and then wrapped with wet paper towels and put it in the tofu box covered by plastic wrap. I left them on the kitchen counter and checked often. Two sprouted very soon, and the other one took more than one week. I planted two seeds with sprouts in small pots covered by plastic wrap and forgot them in the hot summer afternoon. I planned to wait the water leaking out and brought in the garage. I thought that they might be killed by heat. I was surprised that they all survived.
I planted the other sprouting seed in the small pot covered by the plastic film, but left it in the garage. You know what happened. I waited more than one week and nothing came out. I digged out the seed and found it is rotten. Anyway, I thought two plants were enough for me.
Unfortunately they didn’t survive even last fall. I didn’t expect they were so tender that below 40 F degree killed them.
In late January, I started three seeds and two plants came out.
I soaked with warm water for 24 hours and changed a few times after the water turned cold. I wrapped with wet paper towel and put them in Zipper bag. Then left the zipper bag on the Internet router. When I found two seeds with sprouts and planted them in one small pot. Let the pot stay on the router.
I bring them out in sunny days when the temp goes up 32F.
I bring them in the garage at night and heat them with a seedling heat mat.