Feverfew (bachelor's buttons) care

Light

Feverfew needs sun on the leaves, not just bright ambient room light. Flowers most freely in full sun but tolerates partial shade. Some afternoon shade in hot climates prevents stress; deep shade gives floppy, sparse plants. A south or west-facing windowsill in the northern hemisphere is the default; anywhere else, expect the plant to stretch and pale out within a season.

Watering

Water feverfew when the top 3 cm of soil is dry; roughly weekly, less once established. The actual day count varies with pot size, light, and season — the finger test (or lifting the pot to feel its weight) is more reliable than a fixed calendar. Empty any drainage saucer afterwards so the pot isn't sitting in water. Moderately drought-tolerant once rooted. Keep young plants evenly moist, then water only in dry spells. Avoid soggy soil, which causes rot and shortens its already brief life.

Soil and pot

Feverfew grows best in well-drained, moderately fertile soil. Adaptable to most ordinary garden soils with good drainage and a neutral to slightly alkaline pH. Dislikes heavy, wet clay; sharp drainage extends its lifespan. A pot with a working drainage hole is non-negotiable for this species — even free-draining mix will turn soggy in a closed planter. If you love the look of a decorative pot without a hole, use it as a cachepot around an inner nursery pot you can lift out to water.

Humidity and temperature

Feverfew sits happiest at around Ambient outdoor humidity humidity and -15 to 27°C (5 to 81°F). An undemanding border perennial with no special humidity needs. Good airflow in humid summers helps prevent powdery mildew and aphid build-up. If you keep the room above year-round and avoid placing the plant near a cold draught, a hot radiator, or an air-conditioning vent, you have already handled the two biggest indoor stressors.

Fertilising

Feed feverfew sparingly. Light needs. A spring compost mulch or a single balanced feed at the start of growth is plenty. Over-feeding produces weak, leggy stems that flop and flower poorly. Skip fertiliser entirely on a stressed, recently-repotted, or actively wilting plant — fertiliser salts make damage worse, not better. Wait for a round of healthy new growth before resuming a feeding rhythm.

Common problems

Below are the issues we see most often on feverfew in the Growli community. Each is annotated with the most common cause so you know where to start.

• Prolific self-seeding — Sets abundant seed and can pop up everywhere; deadhead spent flowers to control spread if you want it contained.
• Aphids on new growth — Soft shoots attract aphids; dislodge with a water spray or tolerate them for the beneficial insects feverfew attracts.
• Short-lived crowns — Plants often decline after two or three years; allow some self-seeding or take cuttings to maintain the planting.
• Contact dermatitis — Handling foliage and sap can cause skin rash and sensitisation in some people; wear gloves when cutting or weeding.

Propagation

Easily raised from seed (surface-sown, needs light), by basal cuttings or division in spring, or simply by transplanting self-sown seedlings. Propagation is the cheapest, most satisfying way to expand a collection — and it doubles as insurance against losing a mature plant to an accident. Take a backup cutting once the parent is established and healthy.

Toxicity to pets

Feverfew is toxic to pets. Toxic to dogs, cats and horses. As a member of the genus Tanacetum (the chrysanthemum/Asteraceae group that the ASPCA lists as toxic), it contains sesquiterpene lactones (including parthenolide) and pyrethrin-type compounds; ingestion can cause vomiting, diarrhoea, hypersalivation, incoordination and dermatitis. The plant and its sap are also a recognised human contact allergen. If you keep cats, dogs, or curious children in the house, weigh placement carefully — a high shelf or a hanging planter is enough for casual safety. For severe ingestion incidents, call your local vet and the ASPCA Animal Poison Control Center (in the US, 888-426-4435).

Pet-safety status is sourced from the ASPCA Toxic and Non-Toxic Plant List, which catalogues the most-asked-about plants for cats, dogs, and horses.

Feverfew deep-dive guides

Every aspect of feverfew care, each with its own calibrated guide:

• Feverfew watering schedule
• Feverfew light requirements
• Best soil mix for feverfew
• Feverfew fertilizing guide
• When to repot feverfew
• How to propagate feverfew
• Feverfew growth rate & size
• Feverfew cold hardiness
• Feverfew temperature & humidity
• Is feverfew toxic to cats & dogs?
• Is feverfew toxic to cats?
• Is feverfew toxic to dogs?

Related guides

Feverfew is also known as feverfew, bachelor's buttons, and featherfoil.

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• All 2464 plant care guides in the Growli library