_Calathea alluia_ source

[HI23AHG]

When I lived in Puerto Rico_Calathea alluia_grew all over our property
andit was one of my favorite vegetables. I would really like to find
a source so I could grow it here in New Orleans. The main problem seems
to be that it is not as attractive as the other members of the family
so it is not readily  available through tropical foliage sources.
Any suggestions?
Philip Mueller
Tulane University