Have you ever thought about creating a small garden in your own home? If you love cosmos, you might consider growing them at home. Cosmos grow quickly, bloom for a long time, are not only beautiful but also inexpensive and easy to plant.
I. Choosing the Right Seeds
Choosing the right cosmos seeds is important. High-quality cosmos seeds are well-shaped, brightly colored, dry, and free from insect damage. It's best to buy them from reputable flower shops or online stores. For beginners, it is recommended to choose the Large-headed Cosmos or Hibiscus Cosmos varieties.
II. Preparing Fertilizer and Soil
Soil and fertilizer are also crucial for the growth of cosmos. Cosmos prefer loose, fertile, and well-draining soil, and they need organic fertilizer. You can use organic waste, well-rotted compost, chicken manure, etc., for fertilization.
III. Choosing the Right Pot
Choosing the right pot is also key to successful cultivation. Generally, choose a pot with a diameter of 25-30cm, and it must have drainage holes at the bottom. If it's your first time cultivating, it's recommended to choose a breathable ceramic pot, which can ensure the roots can breathe.
IV. Correct Planting Method
Sprinkle the soaked seeds evenly in the soil, cover with a thin layer of soil, and then spray a little water. Do not press down with your hands, as it can easily crush the seedlings. The temperature required for seed germination is generally above 20°C, and the moisture needs to be well-controlled; just keep it moist.
V. Watering Properly
Cosmos like a humid environment, but they should not be overwatered. Generally, water once a week in summer, once every 10 days in spring and autumn, and about once every 15 days in winter. But this also depends on the specific situation.
VI. Proper Pruning
When the cosmos flowers wither, they need to be pruned appropriately. You can pick off the withered petals and leaves to keep the plant tidy. Generally, do not prune more than 1/3 of the plant at a time.
VII. Pay Attention to Pest Control
Cosmos are susceptible to aphids and spider mites, so attention needs to be paid to prevention and control. You can use biological or chemical pesticides, but be careful with safety when using chemical products.
VIII. Avoid Over-fertilization
Although cosmos need fertilizer, do not over-fertilize. Too much fertilizer can cause leaves to turn yellow and wither, and it can easily lead to pests and diseases. Adjust the amount of fertilizer according to the plant's growth condition.
IX. Maintain Ventilation
Cosmos need ventilation, especially in high temperatures when windows should often be opened for air circulation. This can help control the plant's temperature and humidity and reduce the occurrence of pests and diseases.
X. Control Temperature Appropriately
Cosmos have relatively high temperature requirements and generally grow well in an environment between 15°C and 28°C. In summer, use shading nets, wet curtains, etc., to control the temperature and prevent excessive water evaporation from the plant.
XI. Pay Attention to Drought Resistance
Cosmos also need drought resistance. In dry weather, you can increase the watering frequency and pay attention to keeping the soil moist.
XII. Proper Placement
Cosmos need plenty of sunlight during their growth, so choose a suitable location for placement. You can place them by a window or on a balcony, or hang them from a tree branch.
XIII. Regular Fertilization
Cosmos grow quickly and need regular fertilization. Generally, fertilizing once a month is sufficient. When fertilizing, pay attention to controlling the amount of fertilizer and do not overdo it.
XIV. Proper Nutrition
Cosmos need not only fertilizer but also various nutrients. You can choose various vegetable scraps, rice residues, plant ash, etc., for fertilization.
XV.
Through the methods mentioned above, I believe everyone now understands how to grow cosmos at home. Growing cosmos at home not only allows you to enjoy beautiful flowers but also lets you feel the vitality of plants. Give it a try!