Choose the right planting environment to sow at the right time, reasonable fertilization, watering management, pruning and pest control, and pick the cosmos at the right time, also known as the cosmos, is a colorful and vibrant ornamental plant. Because of its long flowering period and rich colors, it is deeply loved by flower friends. Love, cultivating cosmos is not easy, and the correct breeding method is crucial. This article will introduce you in detail the correct breeding method of cosmos and help you easily cultivate a beautiful cosmos flower sea. Choose a suitable planting environment. Cosmos prefers light, drought-tolerant, and has no strict requirements on the soil, but it is better to use well-drained and fertile sandy soil. When selecting a planting site, low-lying places with water and insufficient sunshine should be avoided. Cosmos The pH requirements for the soil are not strict, and the pH value can be between 5.5 and 7.5. Sowing the seeds of cosmos in a timely manner can be sown in both spring and autumn, but spring is better. Before sowing, soak the seeds in warm water for 12 hours, and then evenly sow them in the prepared soil. The soil thickness is about 1 cm. After sowing, keep the soil moist and germinate in about 7-10 days. Reasonable fertilization During the growth of Cosmos, appropriate amount of fertilization is needed. Generally, fertilization can be started about 15 days after sowing and fertilizer is applied every 15-20 days. The fertilization is mainly based on nitrogen, phosphorus and potassium compound fertilizers, and the concentration should not be too high to avoid burning the roots. During the flowering period, phosphorus and potassium fertilizers can be appropriately increased to promote the brilliance of flowers. Watering management Cosmos likes to dry and is not resistant to waterlogging. When watering, the soil should be kept moist, but not too much. During the growth period, in case of dry weather, the number of watering can be increased appropriately. In the rainy season, pay attention to drainage to prevent roots. rot. Pruning and pest control During the growth of Cosmos, the withered leaves and weak branches should be pruned in time to promote the healthy growth of the plant. The plant should be inspected regularly to prevent and control pests and diseases found in time. Common pests and diseases include aphids, red spiders, etc., which can be sprayed with pesticides. Control. Picking the cosmos at the right time has a long flowering period, generally blooming about 60-70 days after sowing. When the flowers are in full bloom, they can be picked at the right time for viewing or making bouquets. After picking, place the flowers in a cool and ventilated place to avoid direct sunlight.
Although the cultivation of cosmos is difficult, as long as you master the correct breeding method, you can easily cultivate a beautiful sea of cosmos. I hope the introduction in this article will help you and wish you success in breeding!