Contents
Description
Tanacetum Vulgare, commonly known as tansy, is a flowering plant that belongs to the Asteraceae family. Native to Europe and Asia, it has been introduced to other parts of the world, including North America, where it is considered an invasive species.
Taxonomic Information
| Domain | Eukarya |
| Kingdom | Plantae |
| Phylum | Tracheophyta |
| Class | Magnoliopsida |
| Order | Asterales |
| Family | Asteraceae |
| Genus | Tanacetum |
Appearance
Tansy is a herbaceous perennial plant that can grow up to 1 meter in height. It has alternate leaves that are deeply lobed and finely divided, giving them a fern-like appearance. The leaves are dark green on top and lighter underneath. The flowers are yellow and button-like, arranged in flat-topped clusters at the top of the stems. They bloom from July to September.
Care Guide
Tansy is a hardy plant that requires minimal care. It prefers well-draining soil and full sun, but it can tolerate partial shade. Here are some tips for caring for tansy:
- Water: Tansy prefers dry to medium soil moisture. Water only when the soil is dry to the touch.
- Fertilization: Tansy does not require fertilization. If you want to fertilize, use a balanced fertilizer once a month during the growing season.
- Soil: Tansy prefers well-draining soil that is slightly acidic to neutral (pH 6.0-7.0).
- Sunlight: Tansy prefers full sun but can tolerate partial shade.
- Hardiness zones: Tansy is hardy in USDA zones 4-9.
Common Pests & Diseases
Tansy is relatively pest and disease-resistant. However, here are some common pests and diseases that may affect it:
- Aphids: These small insects suck the sap from the plant, causing stunted growth and yellowing of the leaves.
- Spider mites: These tiny insects feed on the undersides of the leaves, causing yellowing and bronzing of the foliage.
- Powdery mildew: This fungal disease causes a white powdery coating on the leaves and stems.
- Root rot: This fungal disease can occur in poorly drained soil and can cause the plant to wilt and die.
Habitat
Tansy is native to Europe and Asia but has been introduced to other parts of the world, including North America. It grows in a variety of habitats, including meadows, roadsides, and waste areas. It can tolerate a wide range of soil types and can grow in both dry and moist conditions.
Question and Answer
Q: Is tansy toxic?
A: Yes, tansy is toxic if ingested in large amounts. It contains a compound called thujone, which can cause seizures and other serious health problems.
Q: Can tansy be used as a natural insecticide?
A: Yes, tansy contains natural insecticidal compounds that repel insects such as ants, flies, and moths.
Q: How do you propagate tansy?
A: Tansy can be propagated by division or by taking stem cuttings in the spring.
Q: Can tansy be grown in containers?
A: Yes, tansy can be grown in containers as long as the container is at least 12 inches deep and wide and has good drainage.
Related Plants
- Tanacetum Parthenium (Feverfew)
- Tanacetum Coccineum (Pyrethrum)
- Tanacetum Balsamita (Costmary)
- Tanacetum Cinerariifolium (Dalmatian Chrysanthemum)
References
- “Tanacetum Vulgare.” Missouri Botanical Garden. Accessed September 1, 2021. https://www.missouribotanicalgarden.org/PlantFinder/PlantFinderDetails.aspx?taxonid=287054.
- “Tansy.” Royal Horticultural Society. Accessed September 1, 2021. https://www.rhs.org.uk/plants/23638/tanacetum-vulgare/details.
- “Tansy.” The Spruce. Accessed September 1, 2021. https://www.thespruce.com/tansy-plant-profile-4843809.
