How to grow cosmos, how to grow cosmos

Cosmos seeds.

It is planted in spring and autumn, and the climate is very warm in spring and autumn to effectively improve the germination rate of seeds. It is also necessary to soak the seeds in warm water at about 60 degrees for about 24 hours, remove the seeds floating on the water surface and throw them away, and then take out the seeds under the water for planting, but you need to wait until the seeds show white shoots. It is also necessary to dig out a shallow ditch, the depth is about four centimeters, the spacing of each shallow ditch is about twenty centimeters, the seeds are evenly sprinkled in the shallow ditch, and then the shallow ditch is covered with a thin layer of soil, and then a small amount of water is poured.

After planting, it needs to be watered frequently to keep the soil moist for a long time, so that it can grow better and faster.

Before planting cosmos, it needs to be soaked for germination and soil cultivation.

Soak the seeds in warm water for half an hour to increase the germination rate of the seeds. Cosmos can be sown and propagated, and the planting time of the seeds can be selected in the spring, about March, which is more suitable, and the climate is mild and suitable, which is very conducive to seed germination and growth, and can also promote the growth of the later stage.

After the seeds are selected, they can be sown directly, but it is best to soak them in water to germinate, prepare moist paper towels, wrap the seeds in paper towels, sprinkle water regularly to keep the paper towels moist, and put them in a warm place. Whether it is a potted plant or a ground plant, it is necessary to choose the soil suitable for sowing, rake it carefully in advance, and apply a certain amount of base fertilizer.

Cosmos maintenance tips

1. Sufficient light.

Cosmos loves sunlight and should be maintained in a place with light, if the light is insufficient, the plant is very easy to grow. But in the summer, it should be shaded and not exposed to the sun.

2. Watering is very suitable.

Cosmos likes water, but avoid stagnant water, to avoid stagnant water in the pot, it can generally be watered once a day for 1 2 days on weekdays, but it needs to be watered twice a day in summer or during the vigorous growth period.

3. Reasonable fertilization.

Cosmos is not strict on fertilizer and water requirements, if you apply foot fertilizer when planting in a pot, you don't need to fertilize again during the growing season, or apply a rotten fertilizer every 10 days or so during the growth period, pay attention to the service must be diluted before use.

4. Cuttings skills.

Since cosmos is more difficult to cut than ordinary flowers and plants, only by choosing the right branches can you easily raise a whole pot of cosmos.

Soil preparation: Soil can be mixed with humus, garden soil and river sand, and disinfected by exposure to the sun. Soak germination:

Soak the cosmos seeds in warm water for half an hour to increase the germination rate of the seeds. Soil cultivation: Mix the seeds with fine sand, spread them in the soil, then cover them with thin soil and water them to moisturize.

1. Soil configuration

Cosmos is suitable for growing in loose and fertile, well-drained, acidic soil, you can use humus, garden soil, river sand to mix the soil in a ratio of 4:4:2, and put it in the strong light before potting to disinfect, in addition, you can also spread ceramsite at the bottom of the pot to increase drainage and air permeability.

2. Soak and induce germination

Selected cosmos seeds can be sown directly, but in order to improve the germination rate of the seeds, they need to be soaked and germinated, the seeds are soaked in warm water for half an hour, and then wrapped in a wet paper towel after being removed, and then placed in a warm place, and keep the paper towel moist and waiting for germination.

3. Soil cultivation and seedling

After mixing the germination treatment of cosmos seeds with fine sand, they are sprinkled in the potting soil and covered with a layer of thin soil one centimeter thick, then watered to keep the soil slightly wet, and then covered with a layer of plastic film to keep warm and moisturize, and the seedlings can emerge after one week of maintenance.

1. Planting time. The planting time of cosmos should be controlled according to the region, as the climate varies from region to region. For example, if Qiaomo Sen is planted in the northern region, then it should be sown in the open air after the Qingming Festival, and if the temperature, moisture and other conditions are suitable after sowing, then the seedlings can generally emerge after about a week.

It blooms after around July and lasts for two months. If you want to bloom earlier, you can sow them around February if the weather is good, and the flowering time will be earlier.

2. Sowing tips. The growth ability of cosmos is very strong, and the seeds do not need to be soaked and germinated before sowing, and the emergence rate will still be very high. However, before sowing, it is necessary to apply sufficient base fertilizer, and then mix the seeds of cosmos evenly with fine sand and spread them on the soil.

After the seeds are sown, the seeds should be properly covered with a layer of fine soil, and the thickness of the covering soil should be kept at about one centimeter, which should not be too thick. After sowing, it is necessary to pay attention to proper watering to keep the soil moist and provide sufficient water for the seeds to germinate.

3. Transplanting and colonization. If it's a live broadcast, then there is no need to transplant. But if it is seedling transplanting, then we also have to do a good job of transplanting.

Generally, the cosmos plant can be transplanted after 4-5 leaves, and if it is a live broadcast, then it is necessary to do a good job of thinning seedlings at this time. When planting, we should also pay attention to controlling the density, not too dense, so as not to affect flowering. After transplanting, reduce the amount of top dressing, if the top dressing is too much, it will cause the cosmos to grow and reduce the flowering rate.

4. Planting management. When cosmos grows, it is necessary to pay attention to controlling the amount of water and fertilizer. Whether it is watering or fertilizing, it should not be too much.

If the cosmos grows, it will lead to a decrease in the flowering rate of the cosmos and reduce the ornamental value. Then, when cosmos grows, it is necessary to pay attention to the timely removal of the branches at the top of the middle of the plant to promote the growth of plant branches, which can effectively improve the flowering rate and flower quality.