Feverfew (Tanacetum parthenium) is a hardy perennial herb with small, daisy-like flowers that have white petals surrounding a bright yellow center. The blooms are typically about the size of a dime and grow in loose clusters at the tops of branching stems.
The plant has deeply cut, aromatic green leaves that are slightly serrated and resemble parsley in texture. When brushed or crushed, the foliage can have a strong, bitter, herbal scent.
It usually grows between 12 and 24 inches tall and forms bushy, upright clumps. Feverfew blooms from late spring through summer and can continue flowering for a long period if spent blossoms are removed regularly.
It prefers full sun to partial shade and well-drained soil, and it is fairly easy to grow in temperate climates. Feverfew is often used in cottage gardens, herb gardens, and pollinator plantings, and it attracts bees and other beneficial insects.
Traditionally, it has been grown as a medicinal herb, especially associated with headache and migraine support.