Toothache plant - Acmella oleracea (Care, Characteristics, Flower, Images)

Toothache plant

Also known as: Para cress, Buzz buttons, Electric daisy

Toothache plant is a herb commonly cultivated as an ornamental due to its ability to lure fireflies when its flowers are on show. The epithet oleracea in its Latin name Acmella oleracea translates to "herbal" or "vegetable." Jambu oil extracted from the plant is used in cosmetics. This oil has also been used to ward off yellow fever mosquitos and corn earworm moths.

Scientific classification

Species

Toothache plant (Acmella oleracea)

Asters bellflowers fanflowers and allies

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Perennial, Annual, Biennial

Lifespan

35 cm

Spread

Green

Leaf Color

Black

Fruit Color

Yellow, Red, Gold

Flower Color

Green, Red, Yellow

Stem Color

Evergreen

Leaf type

20 - 38 ℃

Ideal Temperature

Summer, Fall

Growth Season

Rapid

Growth Rate

Images of Toothache plant

Distribution of Toothache plant

Distribution Map

Toothache plant is native to South America and has found a wider distribution through introduction. Its natural range further extends into the tropical region, primarily in South America. Toothache plant is also notably cultivated in tropical and subtropical areas across the globe. Over time, it has been introduced to various regions in Asia, the Pacific Islands, and Africa, where it has adapted to local climates outside its indigenous habitat.

Native

Cultivated

Invasive

Introduced

No species reported

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Quickly Identify Toothache plant

Vibrant yellow button-like flowers, 15-30 inches (38-76 cm) tall.

Dark green ovate to broad-elliptic leaves, 2-3 inches (5-7.5 cm) long.

Small black achenes, 0.08-0.1 inches (2-2.5 mm) long.

Broadly ovate to triangular leaves, toothed margins, 2-4 inches (5-11 cm) long.

Decumbent or erect reddish stem, slender, hairless, branching, distinctive color.

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Care Guide for Toothache plant

Every week

Water

Full sun

Sunlight

20 - 38 ℃

Ideal Temperature

Garden Soil

Soil Type

Water: Toothache plant originates from tropical regions and prefers moist, high-humidity environments. It has moderate drought tolerance but thrives with consistent moisture, requiring weekly watering. Best grown outdoors in warm climates, toothache plant benefits from rainwater during its active season, promoting lush foliage and flowering.

Fertilize: For toothache plant, use a balanced NPK fertilizer to promote growth and blooms. Apply diluted liquid fertilizer biweekly in spring and summer, reducing to monthly in fall and winter. Ensure soil is moist before fertilizing to prevent root burn, and adjust feeding based on growth observations.

Pruning: Toothache plant features vibrant yellow flowers and medicinal attributes. Regular pruning, ideally in early spring to late winter, promotes new growth and bloom enhancement. Utilize clean, sharp tools to prevent infection, and maintain a compact shape while avoiding legginess for a healthy, productive plant.

Propagation: Toothache plant features spiky flower heads and is used in traditional medicine for toothaches. Propagate by sowing in well-draining soil with warmth and humidity. Young seedlings require consistent moisture and indirect sunlight. After establishment, transplant carefully to reduce root disturbance.

Repotting: Repot toothache plant every 2-3 years in early spring, using a pot one size larger and well-draining soil. Avoid waterlogging and provide bright, indirect light. Regular watering aids recovery, while respecting toothache plant's root sensitivity ensures uninterrupted, vibrant growth.

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