Possible Clues:

• Source of an oil used in aromatherapy
• Oil used in shampoos
• Source of a homeopathic oil
• Myrtle whose oil is a folk remedy for skin conditions
• Aromatherapy oil source
• Australian plant that yields a medicinal oil
• Source of an aromatherapy oil
• Husband leaves playhouse by English plant down under
• Building not hot enough at first for Australian shrub
• Source of an essential oil with medicinal properties