2024 Author: Gavin MacAdam | [email protected]. Last modified: 2023-12-16 13:38
Coreopsis auriculate (lat. Coreopsis auriculata) - a herbaceous low-growing perennial plant from the genus Coreopsis, the glorious Astrov family. An excellent find for summer cottages with calcareous soil. It is used as a ground cover, blooming with bright yellow eared inflorescences somewhat reminiscent of Daisies. A distinctive feature among related plants are the side petals, located at the base of the basal leaves in a pair, similar to the ears of nimble field mice.
Description
Auricular Coreopsis was born on the forest edges of the southeastern United States. The herbaceous plant does not strive for height, rising above the ground, as a rule, by 10-30 cm, and only in rare cases it grows a little more than half a meter. Auricular coreopsis prefers to creep in width, and therefore is a ground cover plant.
Petiolate basal dark green leaves of an ovoid-elliptical shape are covered with hairs. At the base of the lobe of each leaf, there is a pair of small lateral petals, which are a distinctive feature of the "ear Coreopsis". In their shape, they are very similar to the ears of agile mice, so sometimes the plant is called "Coreopsis mouse ears" or simply "Coreopsis ear-shaped". So, Coreopsis owes its adjective "eared" to its leaves, and not to the petals of flowers, which also look like the flirtatious ears of funny characters in children's fairy tales.
Inflorescences of "Coreopsis auricular" are golden-yellow in color, which is a traditional color for plants of the genus Coreopsis. The central yellow disc is formed by tubular bisexual flowers. The disk is surrounded by eight yellow rays, asexual marginal petal flowers, each of which consists of three lobes with sharp edges. Flowering pleases from April to June, located on vertical tall peduncles. To prolong flowering until autumn, wilted inflorescences should be removed. Sometimes "Coreopsis eared" itself re-blooms in the fall, when the summer heat subsides.
After flowering, "Coreopsis auricular" forms lateral short shoots with axillary buds, called "stolons" by botanists. Stolons are responsible for the vegetative propagation of the plant and contribute to the formation of dense groups that cover the surface of the earth with a dense rug-lump of leaves and bright, mischievous flowers. Under optimal growing conditions, the spreading process through the stolons is slow, therefore it takes a long period to form an attractive planting naturally.
The single-seeded, wingless fruits of the Uralus Coreopsis can be black or brown, resembling small insects such as bedbugs.
Growing
Like most species of the genus Coreopsis, "Coreopsis eared" likes to be located in places open to the sun.
It grows well on poor calcareous soils, but grows much more actively in fertile moist soil, forming ground cover clumps much faster.
The plant is drought-resistant, but during a prolonged period of drought it needs watering in order not to lose its foliage.
Among gardeners, a variety called "Nana" is popular, which is a dwarf plant, perfect for edging flower beds and garden paths. This variety is propagated by dividing the curtain or using cuttings.
Like most of the plants of the genus Coreopsis, "Coreopsis eared" is resistant to pests. Problems can arise only due to the degree of soil moisture. Dampness and poor drainage provoke fungal diseases of the roots, leading to the death of the plant. If the soil is very dry during hot periods, it affects the leaves. They begin to dry, creating bald spots in the curtain.
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