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Toothache Plant (Acmella oleracea)

Acmella oleracea, the Toothache Plant, is a tropical herb valued for its medicinal properties and unique flower heads, offering a tingling sensation when chewed.

Above information is sourced from Wikipedia

Sunlight

Prefers full sun to partial shade.

Watering

Keep soil consistently moist but not waterlogged.

Soil

Well-draining, fertile soil. Prefers slightly acidic to neutral pH.

Temperature

Thrives in warm temperatures.

Habitat

Outdoor, Indoor, Greenhouse

Fertilizer

Feed with a balanced liquid fertilizer during the growing season.

Care Requirements

Light

Prefers full sun to partial shade.

In hotter climates, some afternoon shade is beneficial.

Water

Keep soil consistently moist but not waterlogged.

Water thoroughly when the top inch of soil feels dry.

Soil

Well-draining, fertile soil. Prefers slightly acidic to neutral pH.

Temperature

Thrives in warm temperatures.

Ideal range is 18-25°C. Protect from frost.

Habitat

Outdoor, Indoor, Greenhouse

Fertilizer

Feed with a balanced liquid fertilizer during the growing season.

Apply every 4-6 weeks; avoid over-fertilizing.

Plant Overview

Plant Type

Herb

Plant Category

Medicinal, Ornamental

Plant Place Type

Ground, Pot

Plant Environment

Outdoor, Indoor, Greenhouse

Lifespan

Perennials

Plant Height

0.3-0.6 m

Spread

0.3-0.6 m

Growth Rate

Moderate

Dormancy

None in tropical climates; may go dormant in cooler temperatures

Leaf Color

Green

Leaf Type

Opposite, ovate to elliptic

Flower Size

1-1.5 cm

Optimal Sunlight Lux

50000

Image Gallery

Flowering & Fruiting Cycles

Monthly activity intensity for bloom and fruit across both hemispheres.

Northern hemisphere

Flowering & fruiting calendar

Peak bloom · AugPeak fruit · Aug
FloweringFruiting
02468JanFebMarAprMayJunJulAugSepOctNovDecActivity intensityMonths85
Southern hemisphere

Flowering & fruiting calendar

Peak bloom · FebPeak fruit · Feb
FloweringFruiting
02468JanFebMarAprMayJunJulAugSepOctNovDecActivity intensityMonths85
Synonyms
Anacyclus pyrethraria (L.) Spreng.
Bidens acmelloides Bergius
Bidens fixa Hook.f.
Bidens fusca Lam.
Cotula dichotoma Pers.
Cotula pyrethraria L.
Isocarpha pyrethraria (L.) Cass.
Spilanthes oleracea L.
Taxonomy
  • kingdomPlantae
  • divisionTracheophyta
  • classMagnoliopsida
  • orderAsterales
  • familyAsteraceae
  • genusAcmella
  • speciesAcmella oleracea
Toxicity

Toxic for humans

No

Rating: 0/5

Toxic for pets

No

Rating: 0/5

Edible

No

Additional Care Tips

Water regularly to maintain consistently moist soil, especially during dry periods. Reduce watering slightly in cooler months.

Pinch back stems to encourage bushier growth and prevent legginess. Remove spent flower heads to prolong blooming. Trim as needed to maintain desired shape.

Easily propagated from stem cuttings taken in spring or summer. Seeds can also be sown indoors in early spring. Cuttings root quickly in moist soil or water.

Repot annually or when root-bound, typically in spring. Use a well-draining potting mix. Choose a pot only slightly larger than the current root ball.

FAQs

What is the primary use of the Toothache Plant?

The Toothache Plant, Acmella oleracea, is traditionally used to relieve toothache due to its numbing properties caused by the compound spilanthol.

How do I care for a Toothache Plant?

Provide full sun to partial shade, consistently moist well-draining soil, and warm temperatures. Water regularly and fertilize during the growing season.

Can I grow Toothache Plant indoors?

Yes, Acmella oleracea can be grown indoors as a houseplant, provided it receives adequate light and consistent moisture. It may require supplemental lighting.

Why is my Toothache Plant not flowering?

Lack of sufficient sunlight, inconsistent watering, or nutrient deficiencies can prevent flowering. Ensure it receives at least 6 hours of sunlight daily and is properly fertilized.

How do I propagate Toothache Plant?

Propagation is easy from stem cuttings taken in spring or summer. Cuttings root quickly in moist soil or water, allowing for rapid expansion of the plant.