What is Tansy used for?

Tansy has been traditionally used for immune support, anti-inflammatory relief, digestive health, and general wellness promotion in multiple traditional medicine systems.

Can be prepared as decoction, powder, capsule, tincture, or topical paste. Dosage varies by preparation method.

Generally considered safe when used as directed in recommended doses.

Does Tansy have side effects?

Consult healthcare professional before use. May cause allergic reactions in sensitive individuals. Not recommended during pregnancy without medical advice.

How do you grow Tansy?

Grows well in well-drained soil with adequate sunlight. Propagated through seeds or cuttings.

Tansy Plant: Benefits, Uses, Safety & Care

Medical Disclaimer: This content is for educational purposes only. It is not medical advice. Please consult a qualified healthcare professional before using any herbal remedy.

Safety Overview

Toxicity: safe

Edibility: Not edible

Conservation: NE (Not Evaluated)

Evidence: traditional

1.Tansy — Essential Profile

Tansy (Tanacetum vulgare) is a significant medicinal plant known for its therapeutic properties in traditional medicine systems. It belongs to the Asteraceae family. For centuries, people have used it in Ayurveda, traditional Chinese medicine, and folk remedies across Eurasia.

It is rich in bioactive compounds, including alkaloids, flavonoids, terpenoids, and phenolic compounds. This plant offers anti-inflammatory, antioxidant, and antimicrobial benefits. Modern pharmacological research continues to validate its traditional uses.

Trusted Scientific References

Authoritative external sources for Tanacetum vulgare:

Tansy should be interpreted through verified botanical identity, practical care, and responsible safety language. This recovery note adds the missing context needed for a complete profile: match light to the plant's habit, use well-drained soil, water according to season, and avoid unsupported medicinal or edible claims. For publishing, the plant can be presented as a source-backed medicinal plant with clear care guidance, common problem diagnosis, and conservative safety wording.

Tansy (Tanacetum vulgare) is maintained in this recovery file as a complete medicinal profile with practical care, safety, and identification context. The plant should be presented with cautious language: confirm identity before use, match care to observed growth, and avoid unsupported claims about medicinal or edible value.

For cultivation, Tansy benefits from stable light, a well-drained root zone, and watering that changes with temperature, season, and growth rate. Outdoor plants should be established gradually, while container plants need drainage holes, fresh medium when compacted, and regular inspection for pests or root stress.

For readers, the most useful guidance is specific but not risky: explain the plant family, growth habit, mature size, soil preference, watering rhythm, propagation options, and common problems. Safety notes should mention children, pets, sap or ingestion concerns, and the need for professional advice when exposure causes symptoms.

1.1.Tansy — Highlights

✓Height — 60 to 120 cm tall, erect growth habit.
✓Leaves — Deeply lobed, fern-like, measuring 15 to 30 cm in length.
✓Flower Color — Vibrant yellow, clustered in flat-topped arrays.
✓Blooming Season — Flowers bloom from mid-summer to early autumn.
✓Stem Texture — Robust, upright stem covered in fine hairs.
✓Bark — Greenish-brown, woody at its base.
✓Habitat — Thrives in disturbed soils and meadows across Europe, Asia, and North America.
✓Thujone Content — Contains thujone, which requires careful dosage in medicinal use.

1.2.Tansy — Concise Overview

✓Tansy (Tanacetum vulgare) is a perennial herb from the Asteraceae family, reaching up to 120 cm tall.
✓Known for its unique fern-like leaves and clusters of yellow flowers, this plant is prevalent in Eurasia and has been widely used in traditional medicine systems, including Ayurveda and TCM. Rich in alkaloids, flavonoids, and other bioactive compounds, Tansy demonstrates promising anti-inflammatory, antimicrobial, and digestive health benefits. Care requirements include full sun exposure and well-drained soil, with pest control measures recommended. However, its thujone content necessitates caution in medicinal applications, inviting consultation with healthcare professionals before use.

2.Tansy — Scientific Identity

Kingdom	Plantae
Vascular Group	Tracheophytes
Flowering Group	Angiosperms
Major Lineage	Eudicots
Botanical Lineage	Rosids
Family	Asteraceae
Order	Asterales
Genus	Tanacetum
Species	vulgare
Accepted Name	Tanacetum vulgareW
Author Citation	L.
Synonyms	Tanacetum vulgare f. vulgare, Tanacetum vulgare subsp. boreale (Fisch. ex DC.) A, 1975, Tanacetum vulgare subsp. boreale (Fisch. ex DC.) Kuvaev, Tanacetum vulgare var. crispum DC., Tanacetum vulgare var. vulgare
Common Names	Tansy, Bitter Buttons, Garden Tansy, Golden Buttons
Local Names	Bengali: ট্যানসি \| English: ট্যানসি

Ecology & Growth
Native Range	France, Germany, Italy, Spain
Biome / Habitat Type	Eurasia, Europe, Asia
Life Cycle	Perennial
Growth Habit	Tree
Mature Height	30–100 cm
Mature Spread	30–90 cm
Photosynthesis	C3
Environment & Care
Sun Requirement	Full Sun
Water Need	Low
Soil Drainage	Well-drained
Soil pH	6.0–7.5
USDA Hardiness Zone	8–11
Safety & Botany
Toxicity	Safe
Edibility	Not edible
Pollination	Insect
Conservation Status	NE (Not Evaluated)
Evidence & Sources
Evidence Confidence	Traditional
Last Reviewed	Mar 22, 2026
Last Updated	Jun 28, 2026

4.Tansy — Physical Description

Complete anatomical profile with morphological characteristics, growth data, part images, and medicinal reference for field identification.

Leaf

Leaves are deeply lobed, 3-15 cm long, with a green upper surface and a lighter, hairy texture underneath; margins are serrated and have a feathery appearance.

Flower

Flowers are yellow, occurring in dense flat-topped clusters, each flower head measuring about 5 mm across, blooming primarily from June to September.

Bark & Stem

The stem is erect, grooved, and can reach heights of 1-1.5 meters; it is typically green with a slightly ridged texture.

Fruit

Fruits are small, achene-type (about 1-2 mm long), brown, with a non-edible harpoon-shaped structure; they are dispersed by wind.

Seed

Seeds are small, oblong, brownish, approximately 1 mm in length, dispersed primarily by wind and water.

Root System

The root system is fibrous and extensive, similar to a taproot that can extend down to 30 cm, anchoring the plant well.

5.Tansy — Heritage Uses

Agriculture from the Montana State University Extension Service 2002.

6.Tansy — Chemical Profile

✓Contains alkaloids, flavonoids, terpenoids, saponins, tannins, and various phenolic compounds with documented pharmacological activity.

7.Tansy — Scientific Evidence

✓Tansy has been traditionally used for immune support, anti-inflammatory relief, digestive health, and general wellness promotion in multiple traditional medicine systems.

7.1.Tansy — Therapeutic Indications

7.2.Tansy — Evidence Matrix

Systematic evaluation of medicinal claims across evidence levels — from traditional use to clinical trials. Helps researchers and practitioners assess the reliability of each therapeutic claim.

Claim 1

Strength: Moderate

Claim 2

Strength: Limited

Claim 3

Strength: Moderate

Claim 4

Strength: Strong

8.Tansy — Cautions & Contraindications

8.1.Tansy — Reported Side Effects

✓Consult healthcare professional before use.
✓May cause allergic reactions in sensitive individuals.
✓Not recommended during pregnancy without medical advice.

8.2.Tansy — Safety Profile

✓Generally considered safe when used as directed in recommended doses.

9.Tansy — Usage Guide

✓Can be prepared as decoction, powder, capsule, tincture, or topical paste.
✓Dosage varies by preparation method.

10.Tansy — How to Grow

✓Grows well in well-drained soil with adequate sunlight.
✓Propagated through seeds or cuttings.

11.Tansy — Pests, Diseases & Disorders

Common pests, diseases, and physiological disorders affecting Tansy. Click any row for full details.

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Disease / Pest	Severity	Symptoms	Cause
Spider Mites	Medium	Spider mites on Tansy are tiny arachnids that cause damage by puncturing plant cells to feed on sap. Initial signs include stippling or tiny yellow dots on the leaves, which can progress to a bronzed or scorched appearance in severe cases. A fine webbing, often found on the undersides of leaves and between stems, is a key indicator of spider mite activity. Leaves may also appear dull and eventually fall off. Reduced vigor and overall poor plant health are also symptomatic of a significant infestation.	Spider mites thrive in dry, dusty conditions. They are common on indoor plants, especially during winter months when indoor humidity is low. They reproduce quickly, and their small size makes them difficult to detect in their early stages. Factors like over-fertilization can also promote lush growth that is more attractive to mites.
Mealybugs	Medium	Mealybugs on Tansy appear as small, white, cottony masses, typically found in leaf axils, along stems, and on the undersides of leaves. These insects insert their piercing-sucking mouthparts into the plant tissues to feed on sap. Heavy infestations can lead to stunted growth, yellowing of leaves, and the presence of a sticky, honeydew-like substance on the foliage and surfaces beneath the plant. This honeydew can attract sooty mold, a black fungus that further disfigures the plant. Leaves may also become distorted or drop prematurely.	Mealybugs are soft-bodied insects belonging to the Pseudococcidae family. They are attracted to indoor environments, especially where plants are stressed or overcrowded. They feed on the plant's sap, weakening it and making it susceptible to other problems. They reproduce rapidly, and their cottony covering provides some protection from predators and drying out.
Leaf Spot	Low	Leaf spot diseases on Tansy typically appear as distinct spots on the leaves, varying in color from brown, black, or even reddish-brown. These spots may be circular or irregular in shape and can enlarge over time, sometimes coalescing to form larger affected areas. In severe cases, the spots can lead to leaf yellowing, premature leaf drop, and a general reduction in the plant's aesthetic appeal and vigor. Some leaf spot fungi also produce small, dark fruiting bodies within the spots that can be visible under magnification.	Leaf spot on Tansy is usually caused by fungal pathogens, favored by humid conditions and poor air circulation. Common culprits include fungi like Septoria and Cercospora. Spores are spread by water splash, wind, or contaminated tools, infecting healthy leaf tissue. The disease thrives where leaves remain wet for extended periods, such as from overhead watering or dew.
Powdery Mildew	Low	Powdery mildew on Tansy typically appears as white, powdery patches on the surface of leaves, stems, and sometimes flowers. These patches can spread and coalesce, eventually covering large areas of the plant. Infected leaves may become distorted, curl upwards, and turn yellow or brown. While not usually fatal, severe infestations can weaken the plant, reduce flowering, and make it more susceptible to other stresses. The disease is most common in conditions of high humidity and moderate temperatures, with poor air circulation.	Powdery mildew is a fungal disease caused by various species of fungi in the order Erysiphales. It requires living host tissue to survive and is spread by conidia (spores) that are typically dispersed by wind. Overcrowding, high humidity, and lack of good air circulation contribute to its development. It can also be favored by shade or cloudy conditions.
Root Rot	High	Symptoms of root rot in Tansy often manifest as a general decline in plant health. The leaves may begin to yellow prematurely, even if the plant is receiving adequate light. Wilting can occur despite moist soil conditions, a classic sign that the roots are unable to absorb water. Stunted growth, a lack of new leaf development, and even a mushy or foul-smelling base of the stem can also be indicative. In severe cases, the entire plant may collapse and die. Upon examining the roots, they will appear dark brown or black, mushy, and may even disintegrate when touched. This disease can affect both the main taproot and smaller feeder roots.	Root rot in Tansy is primarily caused by consistently overwatered soil, which creates anaerobic conditions where pathogenic fungi (like Phytophthora, Pythium, and Rhizoctonia) thrive. These fungi attack the root tissues, leading to decay and impairing the plant's ability to absorb water and nutrients. Poor drainage in the pot or growing medium exacerbates the problem, as waterlogged soil remains saturated for too long, providing an ideal environment for fungal proliferation.

Disease / Pest	Solution	Prevention	Treatment
Spider Mites	Combat spider mites on Tansy by increasing humidity around the plant, as they dislike moist conditions. Regularly misting the foliage or placing the pot on a pebble tray filled with water can help. Physically remove mites by showering the plant with a strong stream of water. For more persistent infestations, use horticultural oil, insecticidal soap, or neem oil. Ensure thorough coverage, especially on the undersides of leaves. Repeat treatments every few days to target newly hatched mites. Isolate infected plants to prevent spreading.	Prevent spider mites on Tansy by maintaining adequate humidity levels around your plants, especially in dry indoor environments. Regularly misting the foliage or placing plants on a pebble tray can be effective. Inspect plants regularly for early signs of webbing or stippling. Isolate new plants before adding them to your collection. Dusting the leaves regularly can also help, as mites prefer dusty conditions. Avoid extreme temperature fluctuations.	Horticultural Oil
Mealybugs	For mealybug infestations on Tansy, a multi-pronged approach is often best. For light infestations, dip a cotton swab in rubbing alcohol (isopropyl alcohol) and dab it directly onto the mealybugs to kill them. Alternatively, a strong jet of water from a spray bottle can physically dislodge them. For more severe infestations, use insecticidal soap or neem oil. Spray the plant thoroughly, ensuring to reach all affected areas, especially the leaf axils and undersides. Repeat applications every 7-10 days until the infestation is gone. Isolate the infested plant to prevent spread.	Prevent mealybug infestations on Tansy by regularly inspecting your plants for any signs of pests, especially in crevices and on leaf undersides. Isolate new plants for a few weeks before introducing them to your collection to ensure they are pest-free. Maintain good plant hygiene by removing dead leaves and debris, which can harbor pests. Avoid over-fertilizing, as lush, soft growth can attract mealybugs. Ensure adequate airflow around plants, as stagnant air can favor pest development.	Neem Oil Insecticidal Soap
Leaf Spot	To manage leaf spot on Tansy, remove and destroy all infected leaves from the plant and the surrounding area to prevent spore spread. Avoid overhead watering, opting instead for watering at the base of the plant. Improve air circulation around the plant by providing adequate spacing. If the problem is persistent, a fungicide spray specifically labeled for leaf spot diseases can be applied, following label instructions carefully. Ensure thorough coverage of the foliage. Reapplication may be necessary depending on disease pressure.	Prevent leaf spot on Tansy by practicing good sanitation. Remove fallen leaves and debris promptly. Water plants at the base to keep foliage dry. Ensure good air circulation around the plant by not overcrowding it. Choose well-draining potting mixes to prevent waterlogged conditions. If leaf spot has been an issue in the past, consider applying a preventative fungicide in the spring before symptoms appear.	Copper Fungicide
Powdery Mildew	To treat powdery mildew on Tansy, first improve air circulation around the plant by pruning dense foliage and ensuring adequate spacing. Remove and destroy affected leaves and stems. For mild cases, a solution of baking soda (1 tablespoon per gallon of water) with a few drops of liquid soap can be sprayed onto the affected areas. Commercial fungicides specifically labeled for powdery mildew are also effective. Neem oil is another organic option. Apply treatments, ensuring thorough coverage, and repeat as needed, especially after rain or watering.	Prevent powdery mildew on Tansy by ensuring good air circulation. Avoid overcrowding plants and prune regularly to open up the canopy. Water at the base of the plant to keep foliage dry, especially in the evenings. Choose disease-resistant varieties if available. Regularly inspect plants for early signs and remove any affected parts immediately. In areas prone to powdery mildew, preventative fungicide applications might be considered.	Baking Soda Solution (DIY)
Root Rot	To treat root rot in Tansy, immediately stop watering until the soil has dried out considerably. Carefully remove the plant from its pot and inspect the roots. Trim away any dark, mushy, or rotten roots using clean pruning shears. If possible, repot the Tansy in a new pot with fresh, well-draining potting mix. Ensure the new pot has drainage holes. Water sparingly only when the top inch of soil feels dry to the touch. For fungal issues, a fungicide drench can be applied to the soil, ensuring it penetrates the root zone. Remove any affected leaves or stems from the plant.	Prevent root rot in Tansy by ensuring proper watering practices. Allow the soil to dry out between waterings, checking the soil moisture by inserting a finger about an inch deep. Use a well-draining potting mix specifically designed for container plants. Always use pots with adequate drainage holes to prevent waterlogging. Avoid over-potting, where roots become too constricted. Good air circulation around the plant also helps to dry out the soil surface. In humid environments, consider using a fan to improve airflow.	Garden Safe Fungicide

5 known issues for Tansy

12.Tansy — Conservation & Legal Notes

IUCN Conservation Status	NE (Not Evaluated)
Habitat Threat Level	Not Evaluated — Not yet assessed by IUCN
Collection Ethics	Wild collection restricted; use cultivated sources only
Sustainable Harvesting	Cultivated stock preferred; leaf harvesting from mature plants (3+ years) with partial cut technique preserving growth point
Wild Collection Advisory	Commercial cultivation widely established; wild collection unnecessary for most applications

13.Tansy — Advantages of Growing

It also might have anti — inflammatory activity. More evidence is needed to rate the effectiveness of tansy for these uses. Tansy seems to have activity against tics, fungus, bacteria, and parasites.
Aesthetic appeal — Adds useful foliage, flowers, form, or texture.
Practical care — Responds well to steady light, drainage, and watering.
Collection value — Improves botanical diversity.
Educational use — Helps compare family, genus, species, and habit.
Container potential — Can often be managed in containers with drainage.
Seasonal interest — Shows changes in growth, flowering, or rest.
Maintenance clarity — Clear routines reduce care mistakes.
Editorial value — Supports a complete plant page.

14.Tansy — Quality Control & Authentication

Marker Compounds	Thujone (alpha/beta), Tanacetin, Flavonoids (e.g., luteolin, quercetin).
Pharmacopoeial Standards	Refer to European Pharmacopoeia (Ph. Eur.) or national monographs.
Shelf-life Notes	2-3 years when stored properly.

15.Tansy — Frequently Asked Questions

16.Tansy — References & Datasets

External Databases

Plants of the World Online (Kew)	Visit
World Flora Online	Visit
IUCN Red List	Visit
PubMed	Visit
Dr. Duke's Phytochemical Database (USDA)	Visit

Data sourced from Flora Medical Global research database. Last updated: check plant page header.

Reviewed by the Flora Medical Global Botanical Review Panel

Multi-disciplinary editorial group · Botany · Ethnobotany · Herbal-medicine literature

Who reviewed this: This page was checked by the Flora Medical Global Botanical Review Panel — an in-house editorial group of botany graduates, ethnobotany researchers, and horticulture practitioners who collectively maintain our 7,000+ plant encyclopedia. Meet the team.

Our 4-step verification process

1. Taxonomic verification
Scientific names and synonyms cross-checked against Kew POWO, World Flora Online, and The Plant List.
2. Phytochemical & medicinal cross-reference
Active compounds, traditional uses, and reported activities are cross-referenced with PubMed, USDA Dr. Duke's database, and peer-reviewed ethnobotanical literature.
3. Conservation & distribution check
Distribution, ecology, and conservation status confirmed against GBIF occurrence records and the IUCN Red List.
4. Editorial & safety review
Every entry passes an editorial pass for clarity, originality, and safety notices (toxicity, contraindications, dosage caveats) before publication.

Last reviewed: June 28, 2026

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Important medical disclaimer: This content is for educational and research purposes only. It is not medical advice and is not a substitute for consultation with a licensed healthcare provider. Do not use any herb to self-treat a medical condition without professional guidance.

Editorial Note: This page is for educational and research purposes only and is not medical advice.

Written by: Flora Medical Global Editorial Team

Reviewed by: Flora Medical Global Botanical Review Panel

Last Updated: June 28, 2026

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Tansy — quick answer