Origin and Common Names
Coreopsis pubescens Ell. var. robusta Gray ex Eames, also known as robust tickseed, is a native plant to North America. It can be found in eastern and central states of the United States, from Maine to Georgia and west to Illinois.
The common names for this plant include tall tickseed, rough coreopsis, and hairy coreopsis.
Appearance
This perennial plant has a height range of 2 to 5 feet and can spread up to 2 feet wide. Its deep roots make it drought tolerant and well-suited for rocky and sandy soils. The leaves of Coreopsis pubescens Ell. var. robusta Gray ex Eames have a light green color, are lance-shaped, and covered in fine hairs.
In the summer, the plant produces an abundance of bright yellow, daisy-like flowers with a dark brown center. The petals are slightly curved, and the flowers range from 1 to 2 inches in diameter. The blooms attract pollinators such as bees and butterflies.
Uses
Coreopsis pubescens Ell. var. robusta Gray ex Eames is commonly used in landscaping as an attractive, easy-to-care-for plant. It is low maintenance, making it a great choice for naturalizing areas or creating wildflower gardens. The plant is also used in erosion control because of its deep roots and quick growth rate.
Additionally, Coreopsis pubescens Ell. var. robusta Gray ex Eames has medicinal properties. It has been used for treating ailments such as diarrhea, fever, and colds. The plant contains compounds that have antioxidant and anti-inflammatory properties, making it potentially beneficial for treating various health conditions.
Light Requirements
Coreopsis pubescens Ell. var. robusta Gray ex Eames typically requires full sunlight to grow and thrive. In fact, planting this species in an area that receives at least 6 hours of direct sunlight a day is ideal. An area with partial shade may also be suitable for growth but may result in the plant producing fewer blooms.
Temperature Requirements
This plant species is typically found in the southeastern United States, where it thrives in hot summer temperatures. Ideally, the plant needs to be grown in an area that has a temperature range of 55 to 80 degrees Fahrenheit. While the plant can tolerate high heat levels, it may not survive frosty winter temperatures and may need protection if conditions become too harsh.
Soil Requirements
Coreopsis pubescens Ell. var. robusta Gray ex Eames grows well in soils that are well-drained and moderately fertile. This species thrives in soils that have a pH range between 5.0 to 8.0. Consistent moisture levels are also important, so the soil must be able to retain moisture without becoming waterlogged. Adding organic matter such as compost or well-rotted manure before planting can help improve soil structure, fertility, and moisture retention. Regular fertilization during the growing season can also be beneficial.
Cultivation Methods
Coreopsis pubescens Ell. var. robusta Gray ex Eames is a hardy plant that can tolerate a wide range of growing conditions. It can grow in full sun to partial shade and thrives in well-drained soils. This plant is easy to propagate through seeds or cuttings. Generally, it blooms in late spring to early summer.
Watering Needs
While this plant is drought-tolerant, it is important to ensure that it receives sufficient water during the growing season. Water the plant deeply once a week, especially during hot and dry periods. It's important to provide the plant with enough water to establish strong roots, but be careful not to overwater as it can lead to root rot.
Fertilization
Coreopsis pubescens Ell. var. robusta Gray ex Eames does not require excessive fertilization. It would be best to fertilize the plant once a year in early spring using a balanced, slow-release fertilizer. It will help promote healthy growth and abundant blooms.
Pruning
This plant is easy to maintain and requires minimal pruning. After blooming, deadhead the spent flowers to encourage new growth. You can also cut back the plant to one-third of its height after the blooming season to promote bushier growth and more flowers in the following growing season.
Propagation Methods of Coreopsis pubescens Ell. var. robusta Gray ex Eames
Coreopsis pubescens Ell. var. robusta Gray ex Eames, commonly known as greater tickseed, is a small, herbaceous plant that belongs to the family Asteraceae. The plant is native to North America and is commonly found in prairies, meadows, and open woods. It is a beautiful ornamental plant that produces yellow flowers during the summer months. Propagation of Coreopsis pubescens can be done through various methods:
Seed Propagation
Seed propagation is the most common method to reproduce Coreopsis pubescens. The seeds of the plant can be obtained from the mature flower heads in the fall. The seeds can be sown directly in the garden bed after the danger of frost has passed. Alternatively, you can start the seeds indoors 6-8 weeks before the last expected frost. Start the seeds in a well-draining, soil-less mix, under bright light, and at a temperature range of 70-75°F. It takes about 2-3 weeks for the seedlings to emerge.
Division
Division is another method to propagate Coreopsis pubescens. This method involves digging up the clump of the plant in the early spring or fall. Then, the clump is divided into smaller sections, each with a healthy root system. These sections are transplanted to their respective locations. Dividing the plant also helps to rejuvenate it, ensuring that it remains healthy and vigorous.
Cuttings
Coreopsis pubescens can be propagated through stem cuttings. Cuttings taken in spring, summer, and fall can root and produce new plants. Take 2-3 inch cuttings from the stem tips of the plant, making sure they have at least two nodes. Remove the leaves from the bottom 1 inch of the cutting and dip it in rooting hormone before planting it in a well-draining soil mix. Keep the cutting in a warm, humid area, out of direct sunlight and maintain a consistent level of moisture. The cutting will root in 2-3 weeks.
Overall, Coreopsis pubescens Ell. var. robusta Gray ex Eames is an easy plant to propagate through seed, division, or cuttings. With proper care and attention, you can propagate this lovely plant and enjoy its beauty in your garden.
Disease and Pest Management for Coreopsis pubescens Ell. var. robusta Gray ex Eames
Coreopsis pubescens Ell. var. robusta Gray ex Eames, also known as the large-flowered tickseed, is a perennial plant that is mostly grown for its beautiful yellow flowers. However, just like any other plant, it is also susceptible to various diseases and pests that can cause damage if not managed properly. Here are some common diseases and pests that can affect the plant and ways to manage them:
Diseases
Cercospora leaf spot: This is a fungal disease that causes circular brownish-gray spots on the leaves. To manage this disease, you can remove the infected leaves and destroy them. You can also apply a fungicide to the plant's leaves as a preventative measure.
Powdery mildew: This is another fungal disease that causes a white powdery substance on the leaves. To prevent this disease, avoid overhead watering and ensure good air circulation around the plant. You can also apply a fungicide to the plant's leaves.
Root rot: This disease is caused by fungi that attack the plant's roots and causes stunted growth and yellowing foliage. To avoid this disease, ensure proper drainage and avoid overwatering the plant. You can also apply a fungicide to the soil before planting.
Pests
Aphids: These are small sap-sucking insects that can cause damage by stunting the plant's growth and causing yellow leaves. To manage aphids, you can use insecticidal soap or spray the plant with a strong jet of water to wash them off.
Caterpillars: These are the larvae of moths and butterflies that can cause damage to the plant by eating the foliage. To manage caterpillars, you can remove them by hand or use a pesticide that contains Bacillus thuringiensis.
Spider mites: These are tiny arachnids that can cause damage by sucking the sap from the leaves. You can manage spider mites by spraying the plant with a strong jet of water or using a miticide.
With proper management of diseases and pests, you can ensure that your Coreopsis pubescens Ell. var. robusta Gray ex Eames plant is healthy and beautiful.
