When is the best time to plant cosmos?

Cosmos, also known as cosmos, is a plant of the genus cosmos in the Asteraceae family. It is often used for greening and beautifying public places such as parks, gardens, and roadsides. It has many varieties and colors, and many people like this plant. So when is the best time to plant cosmos? Let’s take a look below.

1. When is the best time to plant cosmos?

When we plant cosmos, we usually choose to sow them in spring, so that they can bloom in May, and by around August, the flowering will all be over. After the cool autumn, cosmos can bloom again. If you choose to plant cosmos in August, it will also bloom, but you will have to wait until around October. The flowers are smaller and the flower shape is not beautiful at this time, so early spring sowing is most appropriate.

2. The main uses of Cosmos

1. Landscaping

Cosmos is resistant to barrenness, has a tall plant shape, and has many flower colors. It can be used for greening planting in parks, gardens, lawn edges, roadsides, and residential areas. It can also be used to arrange flower borders. It has strong vitality and does not require excessive human intervention. It is a good helper for greening the environment.

2. Medicinal

The whole plant can be used as medicine, which has the effects of clearing away heat and detoxifying, improving eyesight and removing dampness. It has an auxiliary therapeutic effect on acute, chronic, bacterial dysentery and red and swollen eyes. Double-petaled varieties can be used for cut flowers.

3. Cosmos planting method

1. Choose high-quality seeds

(1) Choose a reliable supplier: When purchasing cosmos seeds , choose a seed supplier with good reputation and reliable quality to ensure the purity of the seed variety and the quality of the seeds.

(2) Pay attention to the seed packaging: Read the instructions on the seed packaging carefully to understand the characteristics of the variety, suitable growing environment, sowing time and other information so as to better carry out planting.

2. Preparation before sowing

(1) Determine the sowing time: Cosmos is suitable for sowing in spring or autumn. Choose the appropriate sowing time according to the climate and season of your location.

(2) Prepare suitable containers: Choose appropriate planting containers, such as seedling trays or flower pots, and ensure that the containers have good drainage properties.

(3) Soil preparation: Prepare a soil mixture that is well-breeding and well-drained, such as a mixture of peat soil, leaf mold and perlite particles.

3. Sowing and raising seedlings

(1) Sowing method:

a. Fill the planting container with soil mixture and compact lightly.

b. Sprinkle the cosmos seeds evenly on the soil surface without covering it too thickly.

c. Press the seeds gently to ensure contact with the soil.

d. Use a spray bottle to lightly mist the soil with water.

(2) Seedling raising environment:

a. Place in a well-lit location but avoid exposure to strong sunlight.

b. Maintain a suitable temperature. Cosmos prefers a warm climate and the suitable growth temperature is 15-25 degrees Celsius.

c. Keep the soil moist, but avoid overwatering, which can cause seeds to rot.

(3) Seedling care:

a. When the seedlings grow to 3-4 cm in height, they can be thinned out, keeping the spacing between seedlings at about 10-15 cm.

b. Regularly spray water gently to keep it moist and avoid the soil from drying out.

4. Transplanting and maintenance

(1) Transplanting time: When the seedlings grow to an appropriate size (generally 5-8 cm in height), they can be transplanted into the garden or flower pots.

(2) Soil and fertilizer: Choose well-drained soil and add appropriate amounts of leaf mold and organic fertilizer to provide nutrient supply.

(3) Light and water: Cosmos likes plenty of sunlight and needs at least 6 hours of sunlight every day. Keep the soil moist, but avoid overwatering.

(4) Regular pruning: Regularly prune yellow leaves and flowers to promote plant growth and extend the flowering period.

5. Common problems and precautions

(1) Pest and disease control: Pay attention to the leaves and stems of cosmos. If you find signs of pests and diseases, take appropriate control measures in time, such as spraying pesticides or plant-safe organic control methods.

(2) Controlling growth: Cosmos grows rapidly, and proper control of its growth can prevent the plants from becoming overcrowded.

(3) Autumn sowing: Cosmos is easier to achieve good growth results and longer flowering period when sown in autumn.

That’s it