Phyllostachys

Morgan Creek only sell wholesale and don't sell to individuals (I have an interior landscaping business), but Phoenix Perennials sells 'Bengal Tiger'and they do mail order.

I've been growing sikkimensis outdoors successfully since 2018 (in Victoria , then moved to East Van). I'll be making a post about my bananas soon, but the short version is this:
Since 2018 - Musa sikkimensis 'Bengal Tiger' (from Phoenix perennials). Protected some years to save pseudostem, other years left to grow back from the ground (which it does, without protection).

Since 2022 - Musa sikkimensis (unknown cultivar, from Morgan Creek). Planted it in a poor spot: heavy soil, in a cool, part sun spot that doesn't receive sun at all in winter and shoulder seasons, in a corner of the yard that stays wet all winter.. It was a young plant and I didn't protect it; initially thought it was dead, but it eventually surfaced and it is alive and growing well again now.

I'll dive into more detail about their colour when I make a post, but in general I've heard that many older cultivars of sikkimensis tended to be colourful when young, losing the red splotches as they mature.

Hope this helps entice you to try these mystery bananas, and to get more sikkimensis in the ground in BC!