In one of the the Phillips & Rix books - presumably bulbs though I don't have it to check (one of the few I don't own) - there's a pic of a wonderful looking Bomarea hybrid called Bomarea × cantabrigiensis. Other than, reassuringly,
a link at Cambridge with some basic information about it, one sees very little on the web. Is it still in commerce? Has anyone here grown it? It's a cross w/B. hirtella that is a little showier. Certainly, if there were commercial demand, these could be micro-propagated in the same way as the related Alstroemerias are?
I don't have the ability to access the Curtis Botanical article about it...
https://onlinelibrary.wiley.com/doi/10.1111/curt.12183
I suppose if I were very curious I could get my university professor brother to download it for me.
As for B. hirtella, it grows surprisingly well here in a mid zone 7 on the US east coast. No issues about summer heat, although the fact it and other Bomareas never took off as ornamentals down south makes me wonder if it eventually would have a problem with heat and humidity. (Phormium can just barely tolerate my summers, and my winters...but you certainly don't see them in places like Charleston or New Orleans, where they would be fully winter hardy!) The genus is certainly fairly well known to US horticulture as a whole...there are huge, spectacular vines at public gardens in the Bay Area, and probably elsewhere in California, that have presumably been there for decades. B. hirtella is almost fully hardy here...I lost a plant to the polar vortex winters around 2013-2015 though. I then had 2 seedlings grown from European seed that had performed well, but one seemed to die in this last winter, which also went to -17C/1F. However, I just noticed the "dead" one finally sprouted in September! Given its weakened state, I should probably dig it up for winter.