Basil: A commonly used herb to flavour food, many people also use it to treat colds and digestive symptoms, as well as to improve their mood. Vaping basil is ideal in the morning and afternoon. It contains linalool, a terpene that is also found in various cannabis varieties. It vaporizes well at 130°C (266°F).
Blue lotus: Also known as water lily or holy blue lily, the plant contains an alkaloid called aporphine, which is considered psychoactive. Vaping blue lotus produces a mild sedative effect. It is important to note that its possession is illegal in certain countries, such as Poland, Russia and Latvia. Blue lotus is best vaporized at 125°C (257°F).
Catnip: Mulungu catnip has historically been used in China and Europe to treat various health problems (by humans). It is said that vaporizing catnip produces relaxing and mildly euphoric effects. It is believed to improve mood and in extreme cases can induce fits of laughter, similar to cannabis. Its recommended vaporization temperature is 150°C (302°F).
Camomile: One of the most popular herbs in aromatherapy has always been chamomile for its sedative properties. Many people use it to calm down and fall asleep. Chamomile should be vaporized at 125°C (257°F).
Coffee: Coffee beans can also be vaporized. They contain caffeine, which is known to stimulate the brain and central nervous system. Coffee is known for its strong aroma and can be vaporized if you need a pick-me-up or as an alternative to drinking coffee. The recommended temperature for vaporizing coffee is 200°C (392°F).
Eucalyptus: This herb originated in Australia and is said to help with stress management and has antibacterial properties. Eucalyptus has also been used to treat colds, flu and lung infections. In addition to its purported benefits, it also has a pleasant fragrance. Eucalyptus is best vaporized at 130°C (266°F)
Green tea: This herb, rooted in traditional Chinese culture, can also be vaporized. Like coffee, green tea contains caffeine, which is believed to help treat mild pain and depression. When vaporized, green tea releases more caffeine than when drunk, which is said to provide an energy boost. Green tea vaporizes well at 185°C (365°F).
Hibiscus: Hibiscus, known for its complex aroma and flavor, is most often used to make tea. It contains flavonoids, which are said to stimulate metabolism and help treat anxiety. Its vaporization does not produce caffeine, but it does contain various antioxidants and vitamin C. The recommended temperature for vaporizing hibiscus is 175°C (347°F).
Lavender: This herb is known for its sweet and floral aroma and is popular for its sedative effects. Lavender is often vaporized to relieve pain and treat insomnia. It also has antibacterial properties. Lavender vaporizes well at 125°C (257°F).
Lemongrass. It is also said to help relax muscles, improve mood and improve sleep patterns. Lemongrass should be vaporized at 142°C (288°F).
Lemon balm:Another herb used for its sedative properties. Passionflower has sedative effects when vaporized. It has also been used to relieve pain and treat addiction. Calendula flower is best vaporized at 150°C (302°F).
Peppermint: Known for its fresh aroma and cooling taste, peppermint is often recommended for relieving colds and body aches. It is said to give a similar energy boost to caffeine. The recommended temperature for vaporizing peppermint is 170°C (338°F).
Thyme: This herb is commonly used for culinary purposes, but some people also vaporize it to treat chest colds. It is also known for its antibacterial properties. Thyme should not be vaporized at temperatures higher than 150°C (302°F).
Sage: Sage is believed by various cultures to have spiritual cleansing properties. When vaporized, it is said to improve brain function and digestion. Sage is best vaporized at 190°C (374°F).
Ragweed: This herb is used as a homeopathic remedy for depression. St. John's wort is usually consumed in capsule form, but can also be vaporized at 150°C (302°F).
Carrot root:This root has been used as a sleep aid, to relieve pain and reduce stress. When propagated, it has similar effects to lavender. Catnip root is best vaporized at 150°C (302°F).
Yerba mate: Most popular for making teas and drinks. It is also used for vaporization and is said to increase energy levels and improve overall mood. Yerba mate should ideally be vaporized at 150°C (302°F).
*Sources:
https://vaping360.com/learn/dry-herbs-that-can-be-vaped/
https://www.canatura.com/a/20-legal-herbs-that-you-can-vaporize-during-aromatherapy