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Photo Credit: Wikimedia Commons

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Photo Credit: Wikimedia Commons

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Photo Credit: Kiley Giovannoni

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QUICK FACTS

  • HPRWA SCORE 0
  • SYNONYMS Spilanthes acmella, Spilanthes grandiflora, Spilanthes macroglossa
  • ELEVATION RANGE Low|Mid
  • FAMILY Asteraceae
  • PLANT TYPE Herbaceous
  • WATER REQUIRMENTS Requires regular water
  • SOIL REQUIRMENTS Tolerates many soil types
  • SUN EXPOSURE Full sun to Partial sun
  • SALT TOLERANCE Unknown
  • DRAINAGE REQUIRED No special drainage required
  • PROPAGATION METHODS Seeds

Acmella grandiflora
(acmella, Spilanthes, toothache plant)

This annual plant has been used for centuries as a toothache remedy, medicine, insecticide and ornamental plant. The flowers are put placed directly on the source of pain to let the enzymes do their work of pain relief. People with orthodontic braces can use it instead of wax. It grows well in Hawaii and adds color to any garden. The flowers self-pollinate producing-seeds for a prolific annual plant. As the flowers die the seeds will fall to the soil where new plants will sprout. It grows erect up to 20 centimeters tall. The leaves are serrated with hairs that vary in texture. The foliage tends to come back and rehydrate after periods of drought. It fairs better with some shade.

Plant Uses

  • Container plant
  • Ornamental
  • Medicinal
  • Edible

Dangers