HI Campngolf,
I'm located on the Peninsula, south of San Francisco. You probably get significantly warmer summers, which means if it doesn't freeze so hard during the winter, you can get your plants to fruiting size and maturity much quicker than I can. Here in Northern California, TC starts typically take 2-3 years before they flower, and they're hard to keep alive the first winter. If you succeed to get them past that seedling stage, they grow like weeds.
Keep in mind, acquiring the right variety means everything if you want your banana to fruit up here. I grew a Dwarf Cavendish for more than a decade and it still hasn't flowered! Also, growing TC starts are like rolling the dice if you ordered from Wellsprings garden, Greenearth publishing, or Florida Hill Nursery aka FAKE Hill Nursery:very few, if any, will turn out to be what you ordered. Lastly, it can be a daunting task to get them properly ID'ed by experts, even when you have fruit hanging on them!
Speaking of which, Mark:here's some pictures of the petiole Canals:
Here's a shot of one of the p-stems, the internode length seems a bit longer than your "type specimen" photo of dwarf namwah. Also, the plant that's flowering was the original TC water sprout, which typically are much shorter compared to the first and second ratoon:
Flowering TC watersprout on left, first ratoon on right:
