Description of Coreopsis intermedia Sherff
Coreopsis intermedia Sherff, commonly known as tickseed, is a flowering plant with a yellow daisy-like appearance. The plant belongs to the Asteraceae family and is a herbaceous perennial.
Origin
Coreopsis intermedia Sherff originates from North America, particularly in the central and eastern regions, but the plant has now spread to other parts of the world such as Europe and Asia. The plant grows best in dry, sandy soils with full sun exposure, making it a popular choice among gardeners.
Common names
Aside from tickseed, Coreopsis intermedia Sherff has other common names such as yellow tickseed, tickweed, and Coreopsis grandiflora.
Uses
The plant is commonly used as an ornamental plant both in gardens and as borders for pathways. The plant's bright yellow flowers make it a popular choice for attracting pollinators, such as bees and butterflies, to gardens. The plant also has medicinal properties and has been used to treat minor skin irritations and wounds because of its anti-inflammatory properties.
General appearance
Coreopsis intermedia Sherff grows up to two feet tall and around 18 inches wide. The plant has fern-like leaves, with stems that are slightly hairy. The leaves are green, oval-shaped, and have a smooth surface. The flowers of the plant are bright yellow with a darker yellow center, giving them a daisy-like appearance. The flowers bloom in the summer, and with proper care, can continue flowering throughout the fall.
Light Requirements
Coreopsis intermedia Sherff requires full sun to thrive. It is best to plant it in a location that receives direct sunlight for at least six hours a day.
Temperature Requirements
This plant tolerates a wide range of temperatures. It can grow well in USDA hardiness zones 3-9. The optimal temperature range for growth is between 60-80°F (15.5-26.7°C). It is important to note that extreme heat can cause the plant to wilt and die.
Soil Requirements
The soil for Coreopsis intermedia Sherff should be well-drained. The best pH for growth is between 6.0-7.0. This plant is tolerant of a range of soil types, including sandy, loamy, and clay soils. However, it does not tolerate waterlogged soil, which can lead to root rot.
Water Requirements
Coreopsis intermedia Sherff prefers moderate watering and does not tolerate drought well. Watering should be done deeply once a week, but do not let the soil become waterlogged.
Fertilizer Requirements
This plant does not require a lot of fertilizer. A slow-release general-purpose fertilizer applied in the spring can be sufficient. Over-fertilization can cause excessive foliage growth and reduced flower production.
Cultivation
Coreopsis intermedia Sherff is a hardy perennial plant that is native to the United States. It prefers well-draining soil that is rich in organic matter. The plant can grow in full sunlight or partial shade and thrives in USDA hardiness zones 4 to 9. To cultivate the plant, prepare the soil by amending it with compost or organic matter. Sow the seeds in the prepared soil in the spring after the last frost. Space the plants 12 to 18 inches apart to allow for adequate growth.
Watering Needs
Coreopsis intermedia Sherff requires moderate watering. The soil should be kept moist but not waterlogged. Overwatering can cause the plant to rot, while under-watering can result in stunted growth. To avoid overwatering, allow the soil to dry somewhat before watering again. Water the plant deeply at least once a week during the growing season. During periods of drought, increase the frequency of watering to keep the soil moist.
Fertilization
Coreopsis intermedia Sherff is not a heavy feeder and does not require much fertilization. However, you can apply a slow-release fertilizer in the spring to help the plant grow and produce more blooms. Use a balanced fertilizer with an N-P-K ratio of 10-10-10 or 20-20-20. Apply the fertilizer according to the manufacturer's instructions.
Pruning
Pruning Coreopsis intermedia Sherff is not required, but it can help promote growth and maintain a healthy plant. After the blooming season is over, cut back the plant to about half its height. This will encourage the plant to produce more blooms and remain bushy. Alternatively, you can deadhead the spent blooms throughout the growing season to encourage continuous blooming.
Propagation of Coreopsis intermedia Sherff
Coreopsis intermedia Sherff, commonly known as Tickseed or Coreopsis, is an attractive perennial plant with yellow or golden-yellow flowers that bloom in summer. It is widespread in the United States and can grow up to 2 feet tall. Propagation of Coreopsis intermedia Sherff is relatively easy and can be done using several methods.
Propagation methods of Coreopsis intermedia Sherff
1. Seed propagation: The most common method of propagating Coreopsis intermedia Sherff is by seed. Collect the seeds from dry seedheads in the fall and sow them directly in the soil. The seeds need light to germinate, so do not cover them with soil. Keep the soil moist until germination occurs within 10-20 days.
2. Division: Division is another way to propagate Coreopsis intermedia Sherff. Divide the plant in the early spring before the new growth appears or in the fall after blooming. Carefully dig up the plant and separate the crown and root system into several sections. Replant the sections at the same depth as the original plant.
3. Stem cuttings: Stem cuttings can also be used to propagate Coreopsis intermedia Sherff. Take cuttings in early summer from new growth and dip the cut end into rooting hormone. Plant the cutting in well-draining soil and keep it moist until roots form within 3-4 weeks.
Once the plant is established, it requires minimal care. It prefers full sun and well-draining soil. Coreopsis intermedia Sherff is an excellent addition to any garden and provides a vibrant burst of color to any landscape.
Disease and Pest Management for Coreopsis intermedia Sherff
Coreopsis intermedia Sherff, commonly known as tickseed, is a native flowering plant in North America. It provides an abundance of golden yellow flowers that attract beneficial insects to the garden. However, like any other plant, tickseed is prone to diseases and pests. Here are some common diseases and pests known to affect this plant, along with some management strategies:
Downy Mildew
Downy mildew is a common fungal disease that affects many plants, including Coreopsis intermedia. The disease appears as yellowish spots on the leaves, which eventually turn brown and become covered with a downy white growth. To manage downy mildew, remove and destroy the infected leaves, prune any dense growth, and provide good air circulation around the plant.
Powdery Mildew
Powdery mildew is another fungal disease that manifests as a white or grayish powder on the leaves, stems, and flowers. It thrives in humid and overcrowded conditions. To manage powdery mildew, remove and dispose of any infected plant parts, avoid overcrowding, and ensure that the plant receives adequate sunlight and air circulation.
Aphids
Aphids are tiny sap-sucking insects that feed on the plant's sap, causing the leaves to curl and distort. They also excrete a sticky substance called honeydew, which attracts ants and fungal diseases. To manage aphids, blast them off with a strong jet of water, release ladybugs or lacewings into the garden, or use organic insecticides.
Spider Mites
Spider mites are tiny arachnids that feed on the plant's sap, causing yellow or brown speckling on the leaves. They thrive in dry and dusty conditions. To manage spider mites, keep the plant's foliage clean and well-watered, remove and dispose of any infected leaves, and release predatory mites into the garden.
Slugs and Snails
Slugs and snails are common pests that feed on the plant's leaves and flowers, leaving behind irregular holes and ragged edges. To manage these pests, handpick them off the plant, apply copper tape or diatomaceous earth around the plant's base, or use organic slug baits.
By following these disease and pest management strategies, you can keep Coreopsis intermedia Sherff healthy and productive.
