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First, the method of phlox seed propagation
1. Prepare the soil
Before planting, we must prepare suitable soil for sowing, preferably loose and breathable sandy soil. The potting soil used for planting is best to be exposed to the sun for a period of time, and then sprayed and disinfected with a solution such as potassium permanganate, and can be sown after drying. This is to prevent the seeds from being attacked by pests.
2. Soak germination
Before sowing, the seeds are subjected to germination treatment. In order to improve the germination rate of the seeds, the seeds can be soaked in warm water for 6 to 8 hours, and an appropriate amount of rooting powder can be added to the water, and then the seeds can be sown.
3. Sow and sprout
The sowing method of phlox is very simple. After the germination-treated seeds are treated, they are evenly sown on the soil surface, then cover the seeds with a layer of soil with a thickness of about 3 mm, and then pour a permeable plastic film. Cover with soil for insulation and moisture. After that, move the potting soil to the Yangguan. If there is too much water vapor on the film, you can turn on the ventilation and germinate in about a week.
4. Reasonable maintenance
The temperature for promoting seed germination is 20-28°C, but after germination, the temperature should be appropriately lowered, preferably around 15°C, so that the phlox seedlings can form a good plant shape and promote growth. At ordinary times, pay attention to replenishing light and controlling water. When the phlox seedlings grow to 6-7 cm, they can be transplanted.
Second, the maintenance skills of phlox
1. Proper watering
The growth of phlox needs sufficient water, usually to keep the pot soil moist. Water once every 2 to 3 days in spring and autumn, once in the morning and in the evening in summer, and once a week in winter. When watering, it is best not to pour down from the head of the plant to avoid water on the leaves. (Watering should be "dry and wet")
2, the light is suitable
Although phlox can grow in a semi-shade environment, in order to develop better plants and bloom more, it needs to supplement enough light. In addition to the strong light of summer, the other seasons are acceptable. When spending the winter indoors, it is best to place it in a sunny place indoors to fill in the light.
3. Control the temperature
Phlox is not very resistant to high temperature. Once the temperature in summer is higher than 35 °C, the leaves will turn yellow. Therefore, to cool down properly, move the plants to a cool and ventilated place, and often spray the plants with water mist to cool down and moisturize. Although phlox is more drought tolerant, it is recommended to move the plant indoors in winter, which is more conducive to growth.
4. Reasonable fertilization
During the growth of phlox, it is necessary to pay attention to supplementing fertilizers. You can apply nitrogen, phosphorus and potassium compound fertilizer every two weeks, which can promote growth and flowering. It should be noted here that phlox is very sensitive to nitrogen fertilizer. If too much nitrogen fertilizer is applied, it will easily lead to root burning, so it is best to apply more phosphorus and potassium fertilizer and reduce the amount of nitrogen fertilizer.
5. Timely pruning
When the phlox grows to about 15 cm, it needs to be topped with a topping, which can control the height and shape of the plant, and can also promote the germination of other branches. After flowering, the spent branches should be cut off in time to save nutrients, and the branches should be pruned properly at ordinary times to make the growth of phlox more powerful.