Is a person who grows, experiments with and/or uses entheogens (see entheogen ).
An entheogenist typically uses entheogens for divining, healing, enlightening or ritualistic purposes, not recreational purposes. Reiterated: etheogenists are spiritual individuals and use entheogens to become close to their god/s more for than the purpose of getting high.
"Why are you growing all those weird plants in back? Are you a shaman or something?"
"Not quite, I'm an entheogenist"