In Europe several non chlorphyllian orchids can be found (they are rare) They are : Limodorum abortivum Corallorhiza innata/Corallorhiza trifida Epipogium Gmelini/Epipogium aphyllum Neottia Nidus-avis As far as I know, Rhizanthella is not a european species. I have never heard nor read of any one growing them.