Origin
Tanacetum corymbosum (L.) Schultz-Bip., commonly known as Clustered Tansy, is a species of perennial herbaceous plant from the family Asteraceae. The plant is native to Europe, where it grows in fields and meadows, and also naturalized in North America, particularly in the northeastern regions.
Common Names
The plant Tanacetum corymbosum is commonly known as Clustered Tansy, Globe-headed Tansy, Spotted Tansy, and Golden Buttons.
Uses
The flowering tops of Tanacetum corymbosum are used in traditional medicine for various purposes. The plant contains volatile oils, which have been reported to have antimicrobial, anti-inflammatory, and antifungal properties. The plant is used as a stomachic, antiseptic, and tonic agent in folk medicine. It is believed to help with digestive problems, fevers, menstrual disorders, and skin issues.
The Clustered Tansy is also a popular ornamental plant in gardens, due to its attractive yellow flowers and green foliage. The plant is valued for its long-lasting flowers, which bloom in the summer, and its ability to attract bees and butterflies.
Appearance
The Clustered Tansy typically grows up to 30-60 cm tall and has a spreading habit. The plant has erect stems that are pubescent and hairy. The green leaves are pinnately divided and alternate on the stem. The flowers are yellow and small, and are arranged in rounded clusters called heads. The heads are surrounded by involucral bracts that are typically dark-spotted. The flowering period is from July to September.
Light Requirements
The Tanacetum corymbosum, also known as the clustered tansy, thrives best in full sun to partial shade. This plant requires at least 6 hours of direct sunlight each day to grow optimally. In less-than-ideal sunlight conditions, the plant may not flower as well and can become leggy. If grown in partial shade, it is recommended to place the plant in an east-facing position.
Temperature Requirements
The clustered tansy is well-adapted to a wide range of temperatures, and it is a perennial that can survive during winter. This plant can handle temperatures as low as -29°C (-20°F) and as high as 40°C (104°F). However, it is optimal to keep temperatures between 18°C (64°F) to 26°C (79°F) during its growing period. Temperature fluctuations or sudden temperature drops can negatively impact the quality of the foliage and the flowers.
Soil Requirements
Tanacetum corymbosum grows best in well-draining soil that is rich in organic matter. The ideal pH range for this plant is between 6.0 and 7.5. The plant is adaptable to different soil types, including sandy soils and clay soils, as long as the soil does not become waterlogged. It does not require regular fertilization as excessive fertilization can promote vegetative growth and reduce flower production.
Cultivation Methods
Tanacetum corymbosum, commonly known as Mountain Tansy, is a herbaceous and perennial plant that is easy to grow, making it a popular choice among gardeners. It can grow up to a height of 70 cm and has a spread of 40 cm. It grows well in well-drained soil that is rich in organic matter and is tolerant of a wide range of soils.
To propagate Mountain Tansy, sow the seeds indoors in the spring and transplant the seedlings outdoors in the summer, or divide mature plants in the spring or fall. It's best to plant Mountain Tansy in a location that receives partial to full sunlight.
Watering Needs
Mountain Tansy requires moderate watering, about an inch of water per week, although more may be needed during hot, dry weather. However, it's important not to overwater as the plant is susceptible to root rot. Water the plant thoroughly but allow the soil to dry out a bit between watering sessions.
Fertilization
Mountain Tansy is not a heavy feeder and can thrive without frequent fertilization. However, a light fertilization with organic matter like compost or well-rotted manure biannually during the spring and summer months can boost growth and flowering.
Pruning
Pruning is generally not required for Mountain Tansy, although it can benefit from deadheading to encourage more blooms. After blooming, remove spent flowers, which will help keep the plant tidy and prevent self-seeding. Additionally, cutting back by a third in late summer to early fall can also help stimulate new growth and create fuller, bushier plants.
Propagation of Tanacetum corymbosum
Tanacetum corymbosum, commonly known as mountain tansy or clustered tansy, is a perennial herbaceous plant that belongs to the Asteraceae family. The plant is native to the mountainous regions of Europe, including the Alps, Carpathians, and the Pyrenees. Propagation of this plant is best done through vegetative means.
Propagation by Division
Propagation by division is the most straightforward method to propagate Tanacetum corymbosum. The best time to carry out this procedure is in early spring, before the plant begins its new season's growth. The plant's root system is carefully dug out of the ground, and the roots are gently separated using a sharp knife or garden shears. Each section should have at least one vigorous shoot and a healthy root system. The plant is then transplanted into a new location immediately.
Propagation by Cuttings
Propagation by cuttings method is an alternative way of producing new Tanacetum corymbosum plants. To carry out this procedure, a healthy stem is selected, and cuttings are made using a sharp sterile knife just below a leaf node. The cuttings should be about five inches in length, and the lower leaves are removed. The cuttings are then placed in a container of rooting hormone and planted into a pot filled with high-quality potting soil. The pot is covered with a plastic bag to retain humidity and placed in a bright, warm area. The cuttings will begin to root within two to three weeks.
Propagation by Seed
Tanacetum corymbosum plant can also be propagated by seeds. The seeds are best sown in the spring in well-draining soil. The seeds need to be lightly covered with soil and watered regularly. It is important to keep the soil moist without oversaturating it, as this may cause the seeds to rot. The container should be placed in a bright, warm area and protected from direct sunlight. The seeds will usually germinate within one to two weeks.
Disease and Pest Management for Tanacetum corymbosum
Tanacetum corymbosum, commonly known as Mountain Goldenrod, is a hardy perennial plant that is native to North America. Like any other plant, it is susceptible to diseases and pests that can cause a significant reduction in yield or even lead to plant death. Here are some common diseases and pests that may affect Tanacetum corymbosum and some ways to manage them:
Diseases
1. Powdery Mildew: Powdery mildew is a common fungal disease that affects Tanacetum corymbosum. Symptoms include white powdery spots on the leaves and stems. To manage this disease, practice good plant hygiene. Remove any infected plant parts and dispose of them properly. Avoid overhead watering and apply a fungicide if necessary.
2. Rust: Rust is a fungal disease that causes orange or brown spots on the leaves of the plant. Rust can weaken the plant and reduce yield significantly. To manage rust, remove any infected plant parts and dispose of them. Provide adequate air circulation around the plants and avoid overhead watering. Apply fungicide if necessary.
3. Verticillium Wilt: This disease is caused by a fungus that resides in soil. It causes the leaves to wilt and turn yellow or brown. The fungus can remain in the soil for years and is difficult to control. Rotate the crop and avoid planting in infected soil.
Pests
1. Aphids: Aphids are tiny insects that feed on the sap of the plant. They can cause the leaves to curl and stunt the plant's growth. To manage aphids, try using insecticidal soap or neem oil. You can also introduce natural predators like ladybugs into your garden.
2. Spider mites: Spider mites are another common pest that affect Tanacetum corymbosum. They suck the sap out of the plant, causing discoloration and leaf drop. To manage spider mites, apply a miticide and increase the humidity around the plant.
3. Slugs and Snails: These pests can cause significant damage to the plant by feeding on the plant leaves and stems. To manage slugs and snails, remove debris and mulch from around the plant as they provide hiding places for them. You can also use a slug bait or handpicking to remove them.
By practicing good plant hygiene and monitoring for disease and pests, you can keep your Tanacetum corymbosum healthy and productive.
