Overview
Coreopsis drummondii (D. Don) Torr. & Gray, also known as Drummond's tickseed, is a herbaceous annual plant that belongs to the Asteraceae family. This plant is native to North America and is commonly found in different habitats such as grasslands, prairies, and meadows. It is known for its attractive presence in gardens and landscapes due to its colorful blooms.
Appearance
Drummond's tickseed plant can grow up to 1-2 feet in height and typically has a spread of 1-2 feet. It has slender, hairy stems that are topped with bright yellow daisy-like flowers, which are 1-2 inches in diameter. The flowers have a brown or maroon center and are surrounded by bright yellow petals. The leaves of this plant are also hairy and are alternate, simple, and lance-shaped, with a length of 1-3 inches.
Common Names
Coreopsis drummondii is commonly known as Drummond's tickseed, drooping coreopsis, and Drummond's tickseed sunray.
Uses
Drummond's tickseed is a popular ornamental plant, used in gardens, landscapes, and as cut flowers. It has bright blooms that attract bees, butterflies and other pollinators, making it ideal for pollinator gardens. The flowers of this plant can also be used to make natural dyes. Additionally, Native American tribes used the dried leaves and stems of the plant to make a tea that was used to treat various ailments such as fever and diarrhea.
Growth Conditions for Coreopsis drummondii
Light Requirements: Coreopsis drummondii grows well in full sun to partial shade, with at least 6 hours of direct sunlight per day. In areas with extremely high temperatures, it may benefit from partial shading during the hottest part of the day.
Temperature Requirements: This plant is native to Texas and can tolerate hot and dry conditions once established, making it suitable for xeriscaping. Ideal temperature range for growth is between 65 and 85 degrees Fahrenheit. In colder climates, it can be grown as an annual.
Soil Requirements: Coreopsis drummondii prefers well-draining soils that are slightly acidic to neutral, with a pH between 6.0 and 7.0. It can tolerate a range of soil types, including sandy, loamy, and clay soils, as long as they are not waterlogged. It is important to avoid heavy or compacted soils. Adding organic matter to the soil can improve its structure and fertility.
Water Requirements: While this plant is drought-tolerant, it still needs regular watering during the establishment phase. Once established, it can withstand periods of drought and only requires occasional watering. Overwatering can lead to root rot and other diseases, so it is important to allow the soil to dry out between waterings.
Fertilizer Requirements: Coreopsis drummondii does not require heavy fertilization. A balanced fertilizer (10-10-10) can be applied in early spring or late fall to improve plant growth and flowering. Avoid over-fertilizing, as this can lead to excessive foliage growth and reduced flowering.
Propagation: This plant can be propagated from seed or division. Seeds can be sown directly in the garden in the spring or started indoors 6-8 weeks before the last frost date. Division can be done in the spring or fall by separating the clumps and replanting them in well-prepared soil.
Cultivation methods
To cultivate Coreopsis drummondii, select a site that receives full sun or partial shade. As a native of the southern United States, it is drought-tolerant and can grow in a variety of soil types, including sandy, loamy, or clay soils. It prefers well-draining soils, so amend heavy soils with organic matter such as compost or peat moss if needed.
Sow seeds of Coreopsis drummondii directly in the garden in the spring, after the last frost date. Cover with a light layer of soil and water gently. Thin seedlings when they reach two inches in height, leaving six to eight inches between plants.
Watering needs
Coreopsis drummondii is a drought-tolerant plant and can survive with minimal watering. However, regular watering during the growing season can help increase the number of flowers and maintain plant health. Water deeply once a week, particularly in dry spells or periods of high heat. Water in the morning or evening, avoiding overhead watering, which can increase the chances of fungal diseases.
Fertilization
Coreopsis drummondii does not require fertilization to grow well. However, you can fertilize it early in the growing season with a balanced granular fertilizer to encourage growth and flowering. Follow the instructions on the fertilizer package for application rates and frequency.
Pruning
Pruning Coreopsis drummondii can help maintain plant shape and prolong flowering. Deadhead spent flower heads to encourage the formation of new flowers. You can also cut back the entire plant by one-third in early summer to promote bushier growth and more flowers. Avoid cutting back the plant in the fall, as this can reduce winter hardiness.
Propagation Methods for Coreopsis drummondii (D. Don) Torr. & Gray
Coreopsis drummondii, commonly known as Drummond's Tickseed or Plains Coreopsis, is a popular perennial plant that is mainly found in Texas, Oklahoma, and Mexico. It is easy to propagate and can be grown from seeds, stem cuttings, or division.
Seeds
Propagation of Coreopsis drummondii through seeds is the most common method. The best time to start planting seeds is in the spring, but it can also be done in the fall. To start, the seeds should be sown directly into the soil, as the plant has a deep and extensive root system that makes it difficult to transplant. The seeds should be sown at a depth of around 1/8 inch and spaced 10 to 12 inches apart. The soil should be kept moist but not waterlogged until the seeds germinate, which usually takes around 10 to 14 days. After germination, the seedlings should be thinned to leave a spacing of around 18 inches between the plants.
Stem Cuttings
Propagation of Coreopsis drummondii using stem cuttings can be done in the spring or summer. To start, cut a 3 to 4-inch stem from the parent plant, preferably from the top growth, and remove the leaves from the lower half of the stem. Dip the cut end into rooting hormone and plant it in a well-drained potting mix. Keep the soil moist, and it will take around 2 to 4 weeks for the roots to develop. Once the roots have grown, transplant the cutting to its final location, making sure to avoid damaging the root ball.
Division
Propagation of Coreopsis drummondii through division can be done in either spring or fall. To start, dig up the parent plant and divide it into smaller clumps. Each clump should have at least one shoot and several roots. Replant the clumps in a well-drained soil mix and water them well. Make sure to avoid planting too deeply as this can cause root rot or stem rot.
Disease and Pest Management for Coreopsis drummondii
Coreopsis drummondii, commonly known as Drummond’s tickseed, is a perennial flowering plant that belongs to the Asteraceae family. As with any plant, it is prone to diseases and pests that can damage its growth and development. Here are some common diseases and pests that might affect Coreopsis drummondii and ways to manage them:
Common Diseases
1. Powdery Mildew: Powdery mildew is a fungal disease that causes a white, powdery coating on the leaves. It can reduce the plant's vigor and cause discoloration of the leaves. To manage this disease, it's important to provide adequate air circulation by spacing plants apart, pruning affected leaves, and avoiding overhead watering. Fungicides may also be used.
2. Rust: Rust is a fungal disease that appears as orange or yellow spots on the leaves. It can cause the leaves to turn yellow and fall off the plant. To manage this disease, remove infected plant parts and provide adequate air circulation. Fungicides may also be used.
3. Root Rot: Root rot is a soil-borne disease caused by fungi that attack the roots of plants. It causes the plant to wilt and die. To manage this disease, ensure well-draining soil and avoid over-watering. Preventing waterlogging and fungal infections is crucial.
Common Pests
1. Aphids: Aphids are small, pear-shaped insects that feed on the sap of the plant. This can stunt the plant's growth and cause distorted leaves. To manage aphids, control their numbers using a strong stream of water or an insecticidal soap.
2. Spider Mites: Spider mites are tiny pests that suck the sap from the leaves, causing a stippling effect. They can cause wilting and yellowing of leaves if left unchecked. To manage spider mites, spray the plant with water or insecticidal soap regularly.
3. Leafminers: Leafminers are small, yellow or black larvae that mine the insides of leaves. This causes discolored patches on the leaves and reduces the plant's ability to photosynthesize. To manage leafminers, remove the affected leaves or use a pesticide.
By providing proper care and attention to Coreopsis drummondii, you can avoid or manage these common diseases and pests and maintain a healthy plant.
