Cosmos seed planting method: sprout the seeds before sowing

Among the propagation methods for cosmos, sowing is a fairly commonly used one. After countless trials, this method still has a relatively high survival rate, but there are many things to pay attention to if you want to plant it successfully. How do you plant cosmos? What is the planting method for cosmos seeds? Below, the editor takes everyone to learn about it.

1. How to plant cosmos, sowing

2. When to sow cosmos, spring and autumn

When we propagate cosmos by sowing, choosing a suitable time is very important. Generally, sowing in the two seasons of spring and autumn is best. If sown in spring, it can bloom around June to August; if sown in autumn, it can bloom around October.

3. Planting method for cosmos seeds

1. Soil selection, the soil must have good drainage

Before planting cosmos, we must first choose the soil. This is a very important step. Choosing a suitable soil can also greatly increase its survival rate. Cosmos prefers sandy soil with relatively high looseness. This kind of soil has relatively good drainage and air permeability, which will be very helpful for the plant's growth and is also less likely to cause waterlogging.

2. Seed sprouting, soak in warm water

Before sowing cosmos, we must first sprout the seeds. We can soak the seeds in warm water for 12-24 hours. When the seeds begin to absorb water and swell, they can be taken out for sowing. Seeds that have been sprouted will have a higher germination rate.

3. Sowing method, apply base fertilizer before sowing

Speaking of the planting method for cosmos seeds, the method is actually very simple. First, we can apply an appropriate amount of base fertilizer into the soil, then evenly scatter the seeds on the soil surface, and afterward cover them with 1-2 cm of soil before watering. When watering, be careful to water thoroughly, and remember not to let water accumulate. About one week after watering, the seeds can sprout.

4. Follow-up management, follow-up care must be careful

After sowing, we cannot immediately place it in the sunlight to grow it. It needs to be placed in a shady place for about a week. After the seeds sprout, it can be moved into the sunlight to grow. There are also many things to pay attention to when growing it. If you do not know how to grow it, you can refer to the article on cosmos growing methods, which contains reliable care instructions.

How to plant cosmos seeds: cosmos seed planting method and precautions

Cosmos is a variety of chrysanthemum. It was introduced and cultivated in our country from abroad, and it can now be seen in many places in our country. Because of its high ornamental value, cosmos is deeply loved by people, and many people want to plant it. But before planting, what everyone is probably most concerned about is its planting technique.

How to plant cosmos seeds

1. Sowing season. If summer blooming is desired, sow from February to March in early spring, and it is best to sow under conditions where both temperature and humidity can be controlled. If you plan to sow in the open air, sow in mid-April when the temperature is suitable; when the temperature is suitable, seedlings can emerge in about a week. If autumn blooming is desired, that is, for celebrating National Day, sow in July-August. Cosmos sown in this season has short, sturdy plants and is neat and beautiful.

2. Sowing soil. For the sowing medium, choose loose soil rich in organic matter, and apply a certain amount of decomposed organic fertilizer before sowing. When sowing, mix the seeds evenly with a certain amount of sand, and evenly broadcast them onto the seedbed, then cover with about one cm of soil. After sowing, maintain soil moisture, and keep the temperature at about 18°C for germination.

3. Sowing seedlings. When the seedlings grow 4 to 5 true leaves, they can be transplanted into nutrient pots and pinched. During the seedling growth period, no additional topdressing is needed, so as to avoid excessive growth of branches and leaves and affect flowering.

Cosmos seed planting method

1. Transplanting: transplant when the seedlings have 4-5 true leaves, and pinch; direct sowing followed by thinning can also be used. If base fertilizer is applied at the planting site, then no further fertilization is needed during the growth period. If the soil is too fertile, branches and leaves tend to grow excessively and flowering decreases. Those that bloom during the high-temperature period of July-August are not easy to set seed.

2. Light: cosmos is robust in nature, likes sunlight, tolerates drought, and has no strict requirements for soil, but it cannot tolerate waterlogging. If it is planted in fertile soil, it easily causes excessive growth of branches and leaves, affecting flowering quality.

3. Fertilization: transplant when the seedlings are 5 cm tall, and plant out when they have 7-8 leaves; direct sowing followed by thinning can also be used. If base fertilizer is applied at the planting site, then no further fertilization is needed during the growth period. If the soil is too fertile, branches and leaves tend to grow excessively and flowering decreases. Alternatively, during the growth period, apply decomposed urine diluted 5 times with water once every 10 days, and water 2-3 times during drought, and it can grow and bloom well. Those that bloom during the high-temperature period of July-August are not easy to set seed. After the seeds mature, they fall off easily, so seeds should be collected in the early morning.

4. Watering. Cosmos tolerates drought. After planting out, watering once thoroughly is enough. Afterward, water according to the dry and wet condition of the soil; if it is not dry, no watering is needed.

Precautions for cosmos

It has no strict requirements for fertilizer and water. During the growth period, apply decomposed urine diluted 5 times with water once every 10 days. Tall and medium-type varieties need supports before flowering to prevent lodging from wind damage. They grow quickly and can be pinched multiple times to increase branching. During hot weather, red spiders are likely to occur, and early prevention and control are advisable.

Pest and disease control for cosmos

1. Red spider: cosmos is prone to red spiders when it is hot and dry. Whether you like it or not, the probability of cosmos getting red spiders is very high. Even if only two plants are grown, red spiders may still appear. They should be discovered and controlled early. In the early stage of occurrence, spray 40% dicofol emulsifiable concentrate at 1000 to 1500 times dilution.

2. Powdery mildew: do not plant too densely, and maintain good ventilation and light transmission. After onset, promptly cut off and destroy diseased leaves and diseased plants, and strictly prevent reinfection. In the early stage of onset, spray 15% triadimefon wettable powder at 1500 times dilution, or 10% lewubing wettable powder at 1200 to 1500 times dilution. Use the two chemicals alternately and spray 2 to 3 times in succession.

Cosmos is best sown in early spring every year. When planting, choose suitable soil. Cosmos does not tolerate waterlogging, so doing good drainage work is also necessary. In the later stage of planting, pest control work must be strengthened. Only in this way can cosmos grow well.

How to plant cosmos seeds: cosmos planting methods and techniques

Turning from a seed into a beautiful flower is a very long process for cosmos. You need to know how to plant cosmos seeds before it can bloom into a beautiful flower, right? Below, we will show everyone how to plant cosmos seeds.

1. Introduction to cosmos seeds

Cosmos is a perennial plant. Cosmos comes from the Mexico region of the Americas and only blooms after continuous cultivation. Cosmos can bloom around June or August every year. The colors of cosmos are very beautiful, and its appearance is also enchanting and graceful.

2. How to plant cosmos seeds——seed collection

Cosmos is mainly propagated by seeds. After the cosmos flowers fade, it begins to set seeds. At this time, collect seeds from the cosmos. After the cosmos seeds are sown into the soil, cosmos seedlings begin to grow. Those who plant cosmos by hand can collect seeds and sow them themselves, but if it blooms during the high-temperature season, it will not set seeds.

3. How to plant cosmos seeds——sowing

After the cosmos seeds are harvested, do not plant and sow them immediately. It is best to choose a sowing time. Usually in the north of our country, when the temperature is relatively low, it is best to start planting from after April to June, when the temperature is more suitable. Other regions can choose seasons other than winter for sowing.

4. How to plant cosmos seeds——care

After the cosmos seeds are planted, careful care is needed to ensure they can sprout and bloom smoothly. Cosmos is a short-day plant, so short-day treatment can be carried out after the seedlings emerge.