The leaves of Coleus grass are brightly colored, the leaves are colorful, there are yellow, red, purple, white and other colors, very beautiful, the color palette of the garden. Its flowers are relatively small, and the flowers are generally blue or lilac. It can be raised or kept at home.
Coleus is an annual plant. There are different forms, the following are the cultivation methods and precautions of Coleus grass:
First, lighting:
The growth temperature of Coleus is 10~28 degrees. Above 30 degrees, it needs to be placed in an astigmatism, which is more heat-resistant than alum root.
It prefers a bright, well-lit environment where the leaves will be more colorful. But summer should not be exposed to direct sunlight.
It can be placed by a window, under a tree, or in a ventilated and astigmatized place indoors. Full sunshine in spring and autumn.
Second, moisture:
Coleus needs to maintain moderate humidity, but not too moist. The humidity is too high and the roots are easily perishable.
The frequency of watering depends on the ambient temperature and humidity, and the topsoil is dry before being watered through.
In summer, high temperatures can be used to spray water on the blades with a sprayer to increase humidity.
Third, fertilization:
Coleus leaves are colorful because they are rich in chlorophyll and other pigments that require certain nutrients to synthesize and maintain.
Therefore, the right amount of fertilization can promote the leaf color of Coleus grass. Here's how Coleus fertilizes it:
1. Choose a suitable fertilizer:
The fertilizer of Coleus grass can choose liquid fertilizer specifically for leaf plants, Huaduoduo No. 2, bone meal plus grass ash, enzyme fertilizer plus grass and wood fertilizer.
Organic fertilizers are gentler and nourish the soil, providing comprehensive nutrients.
2. Fertilization:
Coleus is fertilized every half month. When the temperature is high in summer, the number of fertilizers can be appropriately reduced.
Fourth, breeding cuttings:
Coleus can be propagated by cuttings, here are the specific steps:
1. Prepare cuttings material: select the side branches that grow new shoots from mature, healthy Coleus plants, cut them off using clean, sharp scissors, and keep 2 leaves.
2. Cut the branches to a length of about 8 cm, leaving the top two leaves, and erase all the leaves below. Cut the bottom into a bevel and soak in root powder water for 10 minutes to accelerate rooting.
3. After cuttings, water the rooting powder water to keep the soil moist. But also take care to avoid excessive watering, so as not to cause rot of the cutting material. The cutting basin is placed in a ventilated astigmatism. Wait for rooting.
4. The rooting time of Coleus cuttings is about 2 weeks, when the cuttings grow new roots and grow 2-3 new leaves, they can be transplanted into a separate pot for independent growth.
Propagation of cuttings of Coleus is best carried out in spring and autumn, when the plant grows vigorously and is suitable for rooting and growth.
Fifth, pruning
Regularly cut wilted, aged leaves and flowers to promote the growth of new leaves and flowers.
Post-flower pruning: After each flowering, the flower branches should be trimmed short in time, leaving only two or three nodes, so as to promote the germination of new branches and thus maintain its vitality.
6. Pest control:
Coleus is susceptible to pests such as aphids and whiteflies, and after rain can be controlled with insecticides, imidacloprid. Pay attention to cleaning up fallen leaves and diseased leaves in time to avoid the growth of germs.
VII. Precautions:
1. Do not expose Coleus to strong direct sunlight in summer, otherwise it will burn the leaves. Avoid placing it next to the air conditioner or heater for a long time, otherwise it is easy to dry and shrink.
2. Do not let the color leaf grass be in a low temperature environment for a long time, otherwise it is easy to get sick. In winter, it is below 10 degrees Celsius.
Coleus loves ventilation, and maintaining proper air circulation can promote its growth and avoid pests and diseases.
3. Be careful not to over-water or fertilize, which can cause root rot and leaves to turn yellow.
If the leaves of Coleus appear yellowing, wilting and other abnormalities, it should be checked in time whether it is attacked by pests and diseases, or whether it lacks nutrients.
Coleus grass farming methods are not difficult, as long as attention is paid to the right light, temperature, moisture and fertilizer, while strengthening pest control and timely pruning, they can thrive.
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