What kind of herbaceous plant is the large-flowered coreopsis?

Other names of the large-flowered coreopsis

Sword-leaf cosmos, narrow-leaf coreopsis, sword-leaf coreopsis, large-flowered cosmos

Morphological characteristics of the large-flowered coreopsis

Perennial herb, 20-100 cm tall. Stems erect, lower part often with sparse rough hairs, upper part branched. Leaves opposite; basal leaves with long petioles, lanceolate or spatulate; lower leaves pinnately parted, lobes oblong; middle and upper leaves 3-5 deeply lobed, lobes linear or lanceolate, the middle lobe larger, both surfaces and margins with fine hairs. Capitulum solitary at the tip of branches, 4-5 cm in diameter, with a long peduncle.

Growth habits of the large-flowered coreopsis

The large-flowered coreopsis is not strict about soil requirements and prefers fertile, moist sandy loam with good drainage. It can grow in soils with a pH of 5~8 formed by the weathering of slate, granite, sandstone and limestone, and grows best in soils with a pH of 5~7 formed by granite weathering. It is drought-tolerant, cold-tolerant and heat-tolerant, with an optimum temperature of -6~35°C, and can withstand extreme high temperatures of around 40°C and extreme low temperatures of -20°C. It has strong adaptability and is easy to propagate.

Main values of the large-flowered coreopsis

Ornamental value: The large-flowered coreopsis is a perennial herbaceous plant that can bloom in the same year, with a flowering period of more than four months. The flowers are large and gorgeous, and when in bloom they form a sheet of golden yellow, standing out against the green leaves like a golden rooster standing on one leg, brilliant and eye-catching.

As an ornamental and landscaping material, the large-flowered coreopsis is often used in the beautification design of flower borders, slopes, courtyards and street-center gardens. When the flowers are in full bloom, it is like laying a layer of golden soft satin, gorgeous and dazzling. The large-flowered coreopsis can also be used as a cut flower or ground cover, and can also be used for highway greening, with the effect of fixing soil and protecting slopes, and at low cost.

Ecological value: Although the large-flowered coreopsis is an invasive plant, people in China can turn it into a useful plant! The large-flowered coreopsis can increase vegetation coverage, increase soil fertility and conserve water and soil, making it a plant with very high ecological value.

The symbolism of the large-flowered coreopsis

The large-flowered coreopsis carries meanings such as "forever" and "happiness".