Feverfew is a charming, old-fashioned herb that does double duty: it scatters the garden with masses of small white daisies all summer, like a more delicate, ferny relative of the ox-eye daisy, and it carries a long folk reputation as a remedy for headaches and migraines, which is where its modern fame comes from. It is one of the easiest herbs you can grow, sprouting readily from seed, blooming in its first year or its second, thriving in sun and ordinary soil, and reliably self-seeding so it returns year after year once you have it. The pungent, citrusy-bitter scent of its leaves keeps many pests at bay, and the flowers draw in beneficial insects. This guide covers what feverfew is, starting it from seed, the sun and soil it likes, deadheading and cutting back, managing its generous self-seeding, the migraine-herb tradition, and the handful of problems to watch for.
Key Takeaways
- Feverfew is a short-lived perennial (often grown as a biennial or annual) covered in small white daisy flowers.
- It is very easy from seed; the fine seeds need light to germinate, so surface-sow and barely cover them.
- Give it full sun to part shade and average, well-drained soil; it is drought-tolerant once established.
- It self-seeds prolifically and returns each year, so deadhead or pull volunteers if you want to limit it.
- It is the traditional migraine herb; the leaves are the part used, but treat any medicinal use cautiously.
What Is Feverfew?
Feverfew (Tanacetum parthenium, sometimes listed as Chrysanthemum parthenium) is a bushy, aromatic herb in the daisy family, growing 1 to 3 feet tall with finely divided, yellow-green leaves and a long summer display of small daisy flowers, each a white ring of petals around a flat yellow center. There are double-flowered and golden-leaved forms as well as the classic single daisy. It is technically a short-lived perennial, but because individual plants fade after a couple of years and it self-seeds so freely, gardeners often treat it as a biennial or even an annual that simply keeps replacing itself. The crushed foliage gives off a strong, bitter, citrusy aroma that many insects dislike, which has made feverfew a traditional companion plant. Easy, pretty, and self-renewing, it is a classic cottage-garden herb that pairs naturally with the other carefree, pollinator-friendly plants on the Plants & Flowers hub.
Starting Feverfew From Seed
Feverfew is simple and quick to grow from seed, and seed is the usual way to start it. You can sow indoors 8 to 10 weeks before the last frost for blooms the first summer, or sow directly outdoors in spring once the soil has warmed. The seeds are tiny and, like many daisy-family herbs, need light to germinate, so the cardinal rule is to press them onto the surface of moist soil and leave them uncovered or barely dusted with fine soil. Keep the surface consistently moist; germination takes about 1 to 2 weeks. Do not bury the seed, or it simply will not come up.
Thin or space young plants about 12 to 18 inches apart, as feverfew grows into a rounded, bushy plant that appreciates room and air flow. It also takes easily from division of established clumps in spring or fall, and from softwood cuttings, if you want to multiply a particular plant. Feverfew is hardy across a wide range, roughly USDA zones 5 to 9, returning each year both from its perennial crowns and, more dependably, from the seedlings it scatters. Started early indoors, seed-grown plants usually flower their first summer; sown later or directly, they may bloom the first year or wait until the second.
Sun, Soil, and Watering
Feverfew is easygoing about its position. It flowers most freely in full sun but happily tolerates part shade, making it useful for spots that get only morning sun or dappled light. Give it average, well-drained soil; it is not fussy and grows in ordinary or even somewhat poor ground, but it dislikes heavy, waterlogged soil, which can rot the roots. Like many Mediterranean-origin herbs, it actually performs better in leaner soil than in over-rich beds, where it can grow soft and floppy.
Water young plants to get them established, then water only moderately. Feverfew is quite drought-tolerant once its roots are down and prefers soil on the drier side to constantly damp; let the surface dry between waterings. It needs little to no fertilizer, a light topdressing of compost in spring is plenty, and heavy feeding tends to reduce flowering in favor of leafy growth. This low-maintenance, drought-tolerant nature makes feverfew an excellent choice for relaxed, sustainable plantings where you want a long season of flowers without fussing.
Deadheading, Cutting Back, and Self-Seeding
To keep feverfew blooming and looking tidy, deadhead spent flowers through the season; this encourages a longer succession of blooms and, importantly, controls self-seeding. After the main flush of flowers, you can shear the whole plant back by about a third to neaten it and often trigger a second wave of bloom later in the season. Cutting back also keeps the somewhat short-lived plants more compact and vigorous. In late fall, tidy away dead growth, or leave some stems for winter and cut down in spring.
The defining habit of feverfew is its enthusiastic self-seeding. Left to set seed, a single plant produces abundant volunteers that ensure feverfew returns year after year, drifting pleasantly through a cottage border. For many gardeners this is exactly the appeal, a self-renewing patch that never needs replanting. If you would rather keep it contained, deadhead diligently before seed sets, and pull any unwanted seedlings, which are shallow-rooted and easy to remove when young. You can also collect ripe seed from a few flower heads to sow exactly where you want it. This carefree, return-on-its-own quality puts feverfew in the same easy company as self-sowing borage and German chamomile, all of which largely look after themselves once established.
Feverfew as the Migraine Herb
Feverfew’s common name and its modern popularity both trace to its long use as a medicinal herb, particularly for headaches and migraines, a tradition reflected in its very name (a corruption of “febrifuge,” a fever-reducer). The leaves are the part traditionally used, sometimes eaten fresh or dried, and feverfew remains a well-known herbal remedy associated with migraine relief. If you grow it with this in mind, the plant is straightforward to harvest: pick healthy leaves from established plants as needed. That said, this is a gardening guide, not medical advice. Fresh feverfew leaves are bitter and can irritate the mouth or skin in some people, and any herbal use should be approached cautiously and discussed with an appropriate health professional. Even if you never use it medicinally, feverfew earns its place purely as a long-blooming, pest-deterring, self-sufficient ornamental herb.
Common Problems
Feverfew is remarkably trouble-free, which is a big part of its charm. Its strongly scented, bitter foliage deters many pests, so insect damage is minimal, though aphids may occasionally cluster on new growth and can be hosed off. The main issues come from excess moisture: heavy, wet soil or overwatering can cause root rot, and in humid conditions plants may develop powdery mildew or other fungal spotting, all reduced by good drainage, full sun, and adequate spacing for air circulation. Floppy, leggy plants usually mean soil that is too rich or too shady; lean soil and more sun produce sturdier growth. The most common “problem” is simply how readily feverfew self-seeds, which is easily managed by deadheading and pulling extra seedlings. Give it sun, well-drained soil, and a bit of deadheading, and feverfew rewards you with a cheerful, months-long sea of daisies and a herb that quietly renews itself year after year.
Frequently Asked Questions
Is feverfew a perennial or an annual?
Feverfew is technically a short-lived perennial, hardy in roughly USDA zones 5 to 9, but because individual plants fade after a couple of years and it self-seeds so freely, gardeners often treat it as a biennial or annual that continually replaces itself. In practice you get a self-renewing patch with little effort.
How do I grow feverfew from seed?
Surface-sow the tiny seeds and leave them uncovered or barely dusted with soil, since they need light to germinate. Sow indoors 8 to 10 weeks before the last frost or directly outdoors in spring once soil warms. Keep the surface moist; germination takes 1 to 2 weeks. Thin plants to 12 to 18 inches apart.
Does feverfew really help with migraines?
Feverfew has a long traditional use as an herbal remedy for headaches and migraines, with the leaves being the part used. Its name even derives from its old use as a fever-reducer. However, this is a gardening guide, not medical advice; the leaves are bitter and can irritate some people, so approach any herbal use cautiously and consult a health professional.
How do I stop feverfew from spreading?
Deadhead spent flowers diligently before they set seed to limit self-seeding, and pull any unwanted volunteer seedlings, which are shallow-rooted and easy to remove when young. You can also shear plants back after flowering. To grow it deliberately, collect ripe seed and sow it exactly where you want it.
Does feverfew need full sun?
Feverfew flowers most freely in full sun but tolerates part shade, so it works in spots with morning sun or dappled light. Give it average, well-drained soil; it dislikes heavy, soggy ground and actually prefers leaner soil over rich beds. It is drought-tolerant once established and needs little watering or feeding.