Very long lasting non-grocery store Phals?

[Roberta]

Phal cornu-cervi (and its relatives) are long lasting because they are sequential bloomers. Individual flower don't necessarily last all that long, but a spike can keep producing for years. And of the Polichilos section it is one of the easiest - doesn't need as much warmth as some of the others. Another one that is pretty easy is Phal. tetraspis (Phal. speciosa is a synonym) - those are especially neat because every flower is different - so many variations on the white/red theme. Phal equestris does a lot of branching.

Of hybrids, mostly parentage from sections with larger flowers, those can bloom for months but not sequentially.