(Acmella Oleracea 'Toothache')
Toothache Plant is a tender perennial herb that is native to south America, but can be commonly found growing in gardens throughout the United States. At maturity, this plant reaches the height of 1-2' and features erect stems, 1-3” oval-shaped, reddish-green foliage, and tight, compact little pompom yellow flowers that have a red center and no petals. This plant can be grown in a container, attracts bees, birds, butterflies, and fireflies, is rabbit safe, and is both edible and medicinal!
Variety: Toothache Plant
Also Known As: Eyeball plant, Peek-a-boo plant, Para Cress, Szechuan Buttons, and Electric Daisies.
Native to: Brazil Southeast.
Introduced into: Assam, Bangladesh, Benin, Bolivia, Brazil North, Brazil Northeast, Brazil South, Central African Repu, Colombia, Comoros, Cuba, Ecuador, India, Jawa, Leeward Is., Mali, Mauritius, Myanmar, Nepal, Peru, Poland, Réunion, Sri Lanka, Taiwan, Vietnam, Windward Is., Zaïre.
Grown as: Annual: 3-8
Maturity (Blooms): Mid Summer-Early Fall
Light: Full Sun to Part Shade
Soil Moisture: Medium. Prefers moist, but well-drained soils.
Beneficial Insects?: No. Resistant to disease, insects and even our rabbit friends.
Containers: Yes. Toothache plant can be grown in containers with good drainage. Choose a pot that's about 12" across.
Sow Depth: On soil surface.
Produces: erect stems, 1-3” oval-shaped, reddish-green foliage, and tight, compact little pompom yellow flowers that have a red center and no petals.
USDA Zone: 3-11
Spilanthes flowers have also been utilized as a urinary antiseptic and even as a treatment for malaria by the indigenous people of the tropics. The active ingredient in Spilanthes is called Spilanthol. Spilanthol is an antiseptic alkaloid found throughout the entire plant but with the greatest amounts located in the flowers.