Distinctive Flower Heads
Produces rounded yellow flower heads, often featuring a noticeable reddish-brown center.
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Acmella oleracea, commonly known as toothache plant or electric daisy, is a tropical flowering herb recognized for its rounded yellow flower heads with reddish centers. It is also known for the tingling sensation associated with its leaves and flowers. This distinctive plant can be grown in herb gardens, ornamental borders, and suitable containers. Acmella oleracea prefers warm conditions, fertile soil, and consistent moisture, making it an interesting choice for gardeners seeking an unusual edible and ornamental herb.
Produces rounded yellow flower heads, often featuring a noticeable reddish-brown center.
The leaves and flower heads contain compounds associated with a distinctive tingling sensation.
Grows well in warm conditions with suitable sunlight, moisture, and fertile soil.
Can be cultivated in herb gardens, ornamental beds, and containers with adequate drainage.
| Scientific Name | Acmella oleracea |
| Common Name | Toothache Plant; Electric Daisy; Buzz Buttons |
| Plant Family | Asteraceae |
| Product Type | Herb Seeds |
| Plant Type | Herbaceous flowering plant |
| Growth Habit | Low-growing, spreading herb |
| Flower Color | Yellow with a reddish-brown center |
| Foliage Color | Green |
| USDA Hardiness Zones | Generally grown as an annual in cooler climates; perennial in suitable frost-free climates |
| Planting Season | Spring or warm growing season after frost risk has passed |
| Germination Time | Approximately 7–14 days under favorable conditions; varies with seed quality |
| Sunlight Requirements | Full sun to partial shade |
| Soil Requirements | Fertile, moist, well-drained soil |
| Watering | Water regularly to maintain consistent soil moisture |
| Growing Location | Herb gardens, flower beds, and containers |
| Propagation | Seeds or cuttings |
Acmella oleracea brings unusual flower heads, attractive foliage, and distinctive botanical characteristics to herb gardens and containers. Its warm-weather growth habit makes it suitable for gardeners who can provide consistent moisture and well-drained soil. With suitable growing conditions, this distinctive herb can become an interesting addition to a home garden.
Learn about toothache plant seed germination, growing conditions, and the plant's distinctive characteristics.
Sow Acmella oleracea seeds shallowly in a moist, well-drained seed-starting mix. Keep them warm and provide suitable light and consistent moisture. Transplant established seedlings into a sunny or partially shaded location after they develop several true leaves.
Acmella oleracea is called the toothache plant because its flower heads and leaves contain spilanthol and related compounds that can produce a tingling or numbing sensation in the mouth. The name electric daisy refers to this unusual sensory effect. These traditional names do not establish that the plant is a safe or effective treatment for dental problems.
Yes, Acmella oleracea can grow in containers outdoors and in a bright indoor location. Use a pot with drainage holes, fertile soil, and consistent moisture. Outdoor plants generally benefit from warm weather and suitable sunlight, while indoor plants need enough bright light to support healthy growth.