Product description
Coleus (scientific name: Plectranthus scutellarioides (L.) R.Br.) is an erect or ascending herb in the family Lamiaceae. The stems are usually purple and the leaves are membranous. They vary greatly. They are usually oval, blunt to short acuminate at the apex, broadly wedge-shaped to round at the base, with crenellated serrations or crenellated edges, and various colors, with yellow and dark red , Purple and green, cyme with many flowers, most of the flowers are densely arranged, pedicels and produle are puberulent; bracts broad ovoid, calyx bell-shaped, calyx eaves two-lipped, middle lobes broadly ovoid, lateral The lobes are short, ovoid, the corolla is light purple to purple or blue, the crown tube is suddenly curved, the crown has two lips, and the filaments merge into a sheath below the middle. The style extends beyond the stamens, and the front of the disc is enlarged. Nutlets are brown, shiny, and bloom in July.
Coleus is an important group of gardens and urban greening and beautification, and plant landscape construction. It is a plant with ornamental value because of its beautiful plant shape, diverse colors, easy reproduction and easy landscaping.
It takes 5 months for Coleus to grow from sowing to the commercial period. Therefore, if it needs to be marketed during the National Day, it can be sown in May. The artificial substrate of perlite: peat soil is generally used for seeding. Because the artificial substrate is rich in nutrients and loose soil, it is convenient for cultivation and management. When preparing the artificial substrate, the substrate can be disinfected with 800 times solution of 75% chlorothalonil wettable powder.
Before sowing seeds, fill the seedling tray with the substrate, and then wet the substrate with a spray nozzle. The seeds of Coleus are small, so it is difficult to spread evenly when sowing directly. You can mix the seeds with fine soil before sowing. When sowing, pinch the seeds mixed with fine soil, and sprinkle the seeds together with the fine soil on the seedling tray. In general, 2-3 seeds are scattered in each hole. After the seeds are sown, they must be covered with soil to prevent them from drying out. For covering soil, use a sieve with fine soil to sieve the soil on the surface of the plug. The thickness of the covering soil is 1-2 mm. After the covering is completed, the seedling tray can be placed on the seedling bed to germinate.
Potted Coleus requires sandy culture soil that is rich in humus, loose and fertile, and has good drainage and air permeability.
: The water requirement of Coleus is to keep the pot soil and the environment often moist and moderate, avoid drought and prevent waterlogging, so as to prevent the leaves from dehydration and discoloration, and the root system to be infected with soft rot.
: When the light is soft and sufficient, the color of the leaves of Coleus is bright and obvious, but avoid the roughness and loss of gloss on the surface of the leaves caused by direct sunlight in the sunny sky in midsummer. In the shaded environment, the leaf color is not bright.
: Coleus is fond of warm and humid climate and fresh air. The suitable indoor temperature in winter is 20°C to 25°C. The minimum overwintering temperature cannot be lower than 10°C. If the temperature is too low, the leaves will turn yellow and fall off, and the plants will die below 5°C.
Coleus does not require high fertilizer requirements. Apply a thin fertilizer mainly nitrogen fertilizer 1-2 times a month during the growing season.
: During the seedling stage of Coleus, the heart should be topped many times to promote the side branches and make the plant shape full. After flowering, you can keep the lower part of the branches 2-3 nodes, cut off the rest, and reissue new branches.
Coleus is most susceptible to damage by aphids. Aphids hide on the leaves and absorb tender juice, causing the leaves to curl or even wither. Therefore, when Coleus is infested with aphids, timely control should be carried out. In order to reduce pollution, plant pesticides can be used for prevention and control. The method is to mash a certain amount of Platycladus orientalis leaves, add 4-5 times of water to dilute, and spray the injured plants. Generally, the pests can be eliminated after 3-5 sprays.
Coleus has bright colors, many varieties, and is easy to reproduce. It is a widely used foliage flower. In addition to small foliage flower displays, it can also be equipped with patterned flower beds, and it can also be used as a leaf arrangement for flower baskets and bouquets.
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2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.