Ocimum Basilicum or Rehan Herb is cultivated for religious and traditional medicine purposes, and for its essential oil. It is widely used as a herbal tea, commonly used in Ayurveda. Common Name: Rehan Plant, Persian Basil Family: Lamiaceae Synonyms: Ocimum sanctum Origin: South Asia PH Level: Basic Fragrance: Yes Drought Tolerance: High Sun Tolerance: High Water Requirement: High Ocimum Basilicum or Rehan Herb