Gorgeous!
For the record, I got a tenebrosa last summer from a local hobbyist - grown outdoors year-round ... it spent last winter out doors with me, taking over night lows to at least mid-30s. Sheltered from rain, frost - put into uninsulated garage if there was a chance of freeze; I don't know if the garage makes any difference over just pushing things up against the house

It has a so far empty sheath on it now.